Sargent 8266-ET Privacy Deadbo...
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$1,669.11
$1,277.34
Sargent Sargent 8200 Series - (8266) Privacy Bedroom or Bath Deadbolt Function Escutcheon Trim, Non-Keyed Heavy Duty Mortise Lock, Grade 1 SGT-8266-ET

Sargent 8266-ET Privacy Deadbolt Function Mortise Lock with EcoFlex Technology Grade 1

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Model: 8266 LE1A 26D
From the 8200 Series Collection
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$1,277.34
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In Stock (leaves warehouse same day if ordered before 3pm ET)

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Sargent 8266-ET Privacy Deadbolt Function Mortise Lock with EcoFlex Technology Grade 1

Industry Benchmark Heavy-Duty Mortise Lock Solution

The Sargent 8266-ET Privacy Deadbolt Function Mortise Lock represents the industry benchmark for commercial mortise locks, combining maximum security with advanced EcoFlex technology. This Grade 1 heavy-duty lock operates from 12 to 24VDC with up to 96% power consumption reduction and features a 2 3/4" backset depth for 1 3/4" door thickness applications. Tested to 16 million cycles with UL 10C fire rating up to 3 hours, this non-keyed privacy function lock delivers exceptional durability for demanding commercial environments.

Professional Features & Benefits

  • Door Compatibility: Designed for 1 3/4" door thickness with 2 3/4" backset depth for standard commercial door applications.
  • Ultra-High Cycle Rating: Independently verified testing completed at 16 million cycles (Verification ID: V584148) for exceptional long-term reliability in high-traffic applications.
  • Advanced EcoFlex Technology: Operates from 12 to 24VDC with up to 96% energy savings on electromechanical functions, significantly reducing operational costs.
  • Heavy-Duty Construction: Multi-functional lock body with patented design and construction provides maximum security, performance, and durability with high-quality components.
  • Universal Key System Integration: Integrates with all SARGENT key systems including Degree, Signature, KESO, and XC for flexible master keying options.
  • Fire-Rated Performance: UL 10C positive pressure fire-rated up to 3 hours with NFPA 80 compliance for critical fire safety applications.
  • Field-Reversible Configuration: Field reversible handing with 3/4" latchbolt throw allows on-site function changes and reduces inventory requirements.
  • Manufacturer Warranty: 10-year limited warranty with 2-year coverage on electrical components for added confidence and protection.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Installation & Operation

  1. Verify electrical requirements match available power supply. Confirm voltage (12 to 24VDC) and current capacity before proceeding.
  2. Disconnect power supply before beginning installation. Follow all applicable electrical codes and safety procedures.
  3. Mount the unit in the specified location ensuring adequate clearance for wiring access, ventilation, and future service requirements.
  4. Route and connect wiring according to manufacturer wiring diagrams. Use appropriate wire gauge and connectors for the application.
  5. Configure operational settings including any configurable options per application requirements.
  6. Restore power and test all functions including normal operation, alarm/alert functions, and integration with connected systems.
  7. Complete final inspection and document settings. Refer to manufacturer documentation for complete wiring diagrams, programming instructions, and troubleshooting.

Professional Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings

Why Choose Sargent Quality?

Sargent mortise locks deliver professional-grade reliability with patented heavy-duty construction tested to 16 million cycles and certified to exceed industry standards. With comprehensive 10-year limited warranty coverage and 2-year electrical component protection, these locks provide the strength, security, and flexibility demanded by commercial applications. Engineered for demanding environments where dependable performance and energy efficiency are essential.

Product Specs

Series:
8200 Series
Grade:
Grade 1
Keyed Function:
Non-Keyed
Product Group:
Mechanical Locks
Product Subgroup:
Bored Locksets
Subcategory:
Bored Locksets
Keyed:
Yes
Commercial/Residential:
Commercial
Lock Type:
Mortise
Lock Function:
Privacy/Bedroom/Bath
Product Type:
Mortise Locks
Duty Level:
Heavy Duty
Handle Type:
Lever
Product Attribute:
Mortise Locks
Electronic:
No
Product Function:
Privacy/Bedroom/Bath
Product Category:
Mechanical Locks
Collection:
8200 Series
Department:
Door Hardware

Sargent 8266 LE1A 26D – Frequently Asked Questions

1) Will the Sargent 8266 mortise lock fit a 1-3/4 inch commercial door?
The 8266-ET is built for 1-3/4 inch doors with a 2-3/4 inch backset, which is the standard commercial mortise prep. If your doors are thicker or you are working with a 2-3/8 inch backset bored prep, this is not the lock body for the opening.
2) What does the 8266 privacy deadbolt function actually do on a restroom or patient room door?
Privacy deadbolt function: the deadbolt is thrown from inside by a turn, not by a key, and there is no keyed cylinder on the outside. The 8266 is a non-keyed lock, so it is for bedroom, bath, and single-occupancy restroom doors where the occupant locks the door behind them, not for a room you need to secure from the corridor. For a keyed corridor door you want a storeroom or office function instead.
3) Will the Sargent 8266 latch into the strike that is already in my frame?
The 8266 throws a 3/4 inch latchbolt from a 2-3/4 inch backset mortise body. If the existing opening is already a mortise prep with an ANSI strike, the latch lines up. Swapping in from a bored cylindrical lock is a different story, that requires a full mortise pocket cut in the door edge.
4) Can the Sargent 8200 mortise lock be used on a fire rated door?
Yes. The 8266 mortise lock is UL 10C positive pressure fire rated up to 3 hours and complies with NFPA 80, so it can go on rated openings in healthcare, education, and multi-tenant corridors.
5) Do I need to order the Sargent 8266 in left hand or right hand?
No handing to specify. The 8266 lock body is field reversible, so one part covers both hands and you can change it on the job. That is the reason to stock a single SKU across a building rather than splitting inventory by hand.
6) Does the Sargent 8266 privacy lock need to be wired or powered?
No power, no wiring. The 8266 is a mechanical privacy lock, not an electrified one. The EcoFlex 12 to 24VDC low draw operation Sargent publishes applies to the electromechanical functions in the 8200 family, not to this non-keyed privacy body. If you need an electrified mortise lock, look at something like the Command Access ML190 with field selectable EL/EU operation and 24VDC power, or the BEST 45HW wired electromechanical mortise lock at 12V/24V.
7) What is the closest cross-brand equivalent to the Sargent 8266 privacy deadbolt mortise lock?
The Cal-Royal NM8440 is the nearest match: a heavy duty Grade 1 privacy mortise lockset with deadbolt, listed for 1-3/4 inch doors. Like the Sargent 8266, it is a Grade 1 mortise lock in the privacy/bed/bath function with a deadbolt, so the opening prep and the intended use are the same. The Hager 3840S is a second option, a Grade 1 privacy mortise lock with a 2-3/4 inch backset for doors 1-3/4 inch to 2 inch thick, which matches the 2-3/4 inch backset the Sargent 8266 uses.
8) The restroom door does not need a deadbolt, just a latch that never locks. What replaces a privacy deadbolt mortise lock there?
Use a passage mortise lock instead. The Falcon MA101 is a Grade 1 heavy-duty mortise passage lock with field reversible operation and a fire rating, which parallels the field-reversible handing and fire-rated construction of the Sargent 8266 without the privacy deadbolt. The Schlage PM010 is a Grade 1 non-keyed passage latch mortise lock for 1-3/4 inch doors, and the Hager 3810S is a Grade 1 passage mortise lock with a rose and a 2-3/4 inch backset, matching the 2-3/4 inch backset the Sargent 8266 uses so the door prep carries over.
9) What mortise lock should I use if the door needs to be secured against entry from the corridor rather than given a privacy function?
Move to a storeroom or classroom function. The Accentra 8805FL is a Grade 1 storeroom mortise lock with an Arcadia lever, and the Cal-Royal NM8080 is a heavy duty Grade 1 storeroom mortise lockset with an interchangeable core option. For a classroom opening, the Corbin Russwin ML2003 is a Grade 1 mortise classroom lockset for 1-3/4 inch doors and the Cal-Royal NM8070 is a heavy duty Grade 1 classroom mortise lockset with auxiliary deadlatch. All of these take a cylinder; the Sargent 8266 is a non-keyed privacy deadbolt function and does not secure the door against corridor entry.
10) For a behavioral health or patient room, is there a privacy-capable mortise lock built to resist ligature?
The TownSteel MRX-L-01 is a Grade 1 heavy duty stainless steel anti-ligature lever mortise lockset in passage function for 1-3/4 inch doors, and the MRX-A-01 is the same passage function with satin stainless ligature resistant arch trim. The Marks USA 5PDN is a Grade 1 ligature resistant, ADA compliant hospital passage mortise push/pull paddleset in satin stainless steel. These are passage function, so they do not provide the privacy deadbolt the Sargent 8266 gives; specify them where ligature resistance governs and the opening does not need occupant-side privacy locking.
11) The door is 1-5/8 inch thick. What mortise lock fits instead of one built for 1-3/4 inch doors?
The Alarm Lock Trilogy locks cover thinner doors: the DL2700CR and DL3500CR are Grade 1 classroom function electronic mortise locks listed for 1-5/8 inch to 1-7/8 inch doors, and the DL4500 deadbolt covers the same 1-5/8 inch to 1-7/8 inch range. The Sargent 8266 is built for 1-3/4 inch door thickness. On the wider side, the Hager 3810E passage mortise lock with escutcheon covers 1-3/4 inch to 2-1/2 inch and the Baldwin 6301 lever by lever entry/apartment mortise body covers 1-3/4 inch and over.
12) Which mortise locks carry a 3 hour fire rating for a rated opening?
Among the peers, the Schlage Electronics LEMD-GRW is a Grade 1 ENGAGE Series wireless mortise lock with a 3 hour fire rating, and the LEBMB-ADD mobile-enabled mortise lock covering privacy, office, and apartment functions is Grade 2 with a 3 hour fire rating for 1-3/4 inch doors. The Falcon MA101 Grade 1 passage mortise lock is fire rated as well. The Sargent 8266 is UL 10C positive pressure fire rated up to 3 hours with NFPA 80 compliance, so on a 3 hour rated privacy opening it and the LEMD-GRW are the Grade 1 choices.
13) For a classroom that needs to be lockable from inside during a lockdown, what mortise lock is used instead of a privacy function?
Look at intruder and classroom security functions. The BEST 45HCAINL is a heavy duty mortise lockbody with intruder function, and the TownSteel FME-4000 is a Grade 1 heavy duty electronic intruder classroom mortise lockset with RFID technology for 1-3/4 inch doors. The Marks USA LA318GJ is a Grade 1 classroom security indicator mortise lockset for 1-3/4 inch doors. The Sargent 8266 is a privacy/bedroom/bath deadbolt function, which is intended for restrooms and sleeping rooms rather than a classroom lockdown sequence.
14) What do I have to specify when ordering a Sargent 8266-ET mortise lock?
Four decisions. Lever design (A, B, E, F, J, L, P, or W), escutcheon trim (LE1, LS, LW1, or WT), finish, and the cylinder option. Since this is the privacy deadbolt function with no key, most orders take the Less Cylinder option with keying set to None. If you are standardizing a building on interchangeable cores, the 70 small format and 60 large format preps are available less core.
15) What finishes does the Sargent 8200 privacy mortise lock come in for matching existing doors?
Sixteen finishes, so matching an existing run of openings is usually possible: bright and satin brass (03, 04), bright and satin bronze (09, 10), four dark oxidized satin bronze variants (10B oil rubbed, 10BE, 10BL clear coated, plus 20D dark statuary bronze lacquered), bright and satin nickel (14, 15), bright and satin chrome over nickel (26, 26D), bright and satin stainless (32, 32D), and black or white suede powder coat (BSP, WSP). Powder coats are the ones to look at for behavioral health and coastal work.
16) Is the Sargent 8266 durable enough for a high traffic restroom in a school or hospital?
It is Grade 1 heavy duty and independently cycle tested to 16 million cycles. For comparison, most Grade 1 mortise locks are certified at 1 million cycles under ANSI/BHMA, so the 8200 body is tested well past the usual bar. That is the case for putting it on public restroom doors that get hit hundreds of times a day.
17) What else can I buy instead of the Sargent 8266 if I just need a Grade 1 privacy mortise lock?
Two straight mechanical alternatives in the same function: the Cal-Royal NM8440, a Grade 1 privacy mortise lockset with deadbolt for 1-3/4 inch doors, and the Hager 3840S from the 3800 Series, a Grade 1 privacy mortise lock with a 2-3/4 inch backset that covers 1-3/4 to 2 inch doors. The Hager is the one to look at if some of your doors run thicker than 1-3/4.
18) I need a privacy function but with electronic access control, what should I look at instead of the mechanical Sargent 8266?
The Schlage CO-100 standalone electronic mortise lock is offered in privacy function with a keypad reader, Grade 1 heavy duty, for 1-3/4 inch doors. Also in the family, the Schlage LE Series LEBMB-ADD is a mobile enabled mortise lock covering privacy, office, and apartment functions with a 3 hour fire rating, though it is Grade 2 rather than Grade 1.
19) Can I key the Sargent 8266 into my building master key system?
Not this function. The 8266 is the non-keyed privacy deadbolt, so there is no cylinder to master. The 8200 lock body itself integrates with all Sargent key systems including Degree, Signature, KESO, and XC, so if you are standardizing a facility on Sargent, order the keyed 8200 functions for the corridor and entry doors and put the 8266 only on the bath and bedroom openings.
20) Is a mortise lock like the Sargent 8200 the right choice, or should I use a cylindrical lock?
Mortise means a rectangular pocket routed into the door edge, and it gives you a heavier lock body with a separate deadbolt, which is what the 8266 privacy function uses. Cylindrical locks only need two bored holes and go in far faster, but a bored privacy lock has a push button, not a deadbolt. If the door is already mortise prepped, stay mortise. If it is a new hollow metal or wood door with a standard 161 bore prep, a cylindrical lock is the cheaper install.
21) Is a keypad privacy mortise lock a drop-in alternative to a mechanical privacy deadbolt mortise lock?
They serve the same opening but are not the same install. The Schlage CO-100-MS-40-KP is a standalone electronic mortise lock in the privacy function with a keypad reader, Grade 1 heavy duty for 1-3/4 inch doors, so it matches the Sargent 8266 on grade, function, and door thickness. The difference is credential handling and power: the CO-100 is a keypad-managed standalone unit, while the Sargent 8266 is a non-keyed mechanical privacy deadbolt function lock with lever trim. If the facility wants code-based access rather than a thumbturn-style privacy deadbolt, the CO-100 is the swap; if not, stay mechanical.
22) Will a dummy mortise trim work in place of a privacy deadbolt mortise lock?
No. Dummy trim has no latch and no locking mechanism. The Schlage L0170 is a Grade 1 mortise non-keyed lever half dummy trim for 1-3/4 inch doors, and the Emtek 3102 Memphis and 3104 Hamilton are dummy function mortise entrance locksets. Non-keyed describes the Sargent 8266 as well, but the 8266 is a working privacy deadbolt function lock with a 3/4 inch latchbolt throw that latches and holds the door. Dummy trim is for an inactive leaf or a pull-only door.
23) Which mortise lock do I specify if the opening needs to be tied into an access control system with 12 to 24VDC power?
Several electrified mortise locks cover that. The BEST 45HW is a heavy duty wired electromechanical mortise lock with 12V/24V operation. The Command Access ML190 is a heavy-duty storeroom function motorized mortise lock with field selectable EL/EU operation on 24VDC. The Schlage L9092EU with 03A trim is a heavy duty electric lock/unlock outside lever mortise lock, keyed outside, with request to exit, on 12/24VDC, for 1-3/4 inch doors. The Sargent 8266 runs 12 to 24VDC on its EcoFlex electromechanical functions as well, so the power supply carries across; the difference is that these peers are keyed or storeroom-function access control points rather than a non-keyed privacy opening.
24) Is a mortise deadbolt on its own the same thing as a privacy deadbolt function mortise lock?
No. The Kaba Ilco 185 Series is a deadbolt function mortise lock with no handing, and the Alarm Lock DL4500 is a Grade 1 electronic mortise deadbolt with 2,000 user codes and a privacy keypad for doors 1-5/8 inch to 1-7/8 inch thick. Those are deadbolt-only bodies: they throw a bolt but provide no latch, so the door still needs separate latching hardware. The Sargent 8266 combines a 3/4 inch throw latchbolt with the privacy deadbolt in one mortise body with lever trim, so a single prep handles both.
25) Can a Baldwin or Emtek mortise lock body be used on a commercial opening in place of a Grade 1 heavy duty mortise lock?
Check the function and the backset before you commit. The Baldwin 6301 knob by knob and 6301LS lever by lever bodies are entrance/apartment function on a 2-1/2 inch backset, and the Baldwin 6310 entry/storeroom body is also 2-1/2 inch backset. The Sargent 8266 uses a 2-3/4 inch backset, so the door prep does not carry across. The Emtek Brisbane 3019, Memphis 3102, Hamilton 3104, and Manhattan 3106 mortise entrance locksets are dummy function. If the specification calls for Grade 1 heavy duty, the Sargent 8266 is Grade 1 and heavy duty; among the peers, the Cal-Royal NM8440 privacy mortise lockset with deadbolt is the Grade 1 counterpart.
26) What is the difference between a mortise lock and a cylindrical lock when both are Grade 1 and non-keyed?
The door prep. The Schlage PC10 is a Grade 1 non-keyed passage cylindrical lock with a rose for 1-3/4 inch doors; it uses a bored cylindrical prep. The Sargent 8266 is a mortise lock, which needs a mortise pocket cut into the door edge and a 2-3/4 inch backset. A cylindrical lock cannot be dropped into a mortised door and a mortise lock cannot be dropped into a bored door without new prep, so match the hardware to what the door already has.
27) I need a credentialed mortise lock for guest rooms. What are the RFID and card options next to a mechanical privacy mortise lock?
The Dormakaba LX-I-M002 Saffire is an electronic RFID mortise lockset with BLE mobile access at BHMA Grade 2. The TownSteel FME-2000 is a Grade 1 heavy duty classroom mortise lockset with RFID for 1-3/4 inch doors. The Dormakaba E-Plex E5086 is a Grade 1 back to back electronic pushbutton and card entry/egress mortise lock. All three manage access by credential; the Sargent 8266 is a non-keyed mechanical privacy deadbolt function with lever trim and no reader, so the choice depends on whether the room needs credentialed entry or occupant-controlled privacy.
28) Is a glass door or narrow stile mortise lock interchangeable with a heavy duty commercial mortise lock?
No, those are built for different doors. The Kaba Ilco BR Series is a glass door bottom rail lock, and the Dormakaba E-Plex 2066 is a wide stile electronic pushbutton keyless mortise lock. The Alarm Lock DL1300NW Trilogy Networx wireless electronic mortise lock is made for Adams Rite deadlatches, which is aluminum storefront hardware. The Sargent 8266 is built for 1-3/4 inch commercial doors with a 2-3/4 inch backset mortise pocket, so it does not go into a glass door rail or a narrow stile aluminum frame.
29) What mortise lock body should I use for a public entrance opening instead of a privacy function lock?
The BEST 45HCAC is a heavy duty mortise lock body in public entrance function with field reversible operation, and the Cal-Royal NM8050 is a heavy duty Grade 1 office/entrance mortise lockset with auxiliary deadlatch for 1-3/4 inch doors. Both are heavy duty like the Sargent 8266 and both share its field-reversible handing approach in the case of the 45HCAC, but they are entry functions rather than the non-keyed privacy deadbolt function the 8266 provides.
30) Is the Sargent 8266-ET escutcheon trim or rose trim?
Escutcheon trim, on a lever. The ET designation means a full escutcheon plate rather than a small round rose, in four trim styles: LE1, LS, LW1, and WT. Escutcheon covers more of the door face, which is useful when you are replacing older trim and the door face has existing holes or wear marks to hide.
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Does the Sargent 8266 LE1A 26D come with a warranty?
Absolutely. The Sargent 8266 LE1A 26D is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
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