BEST 1E Series Standard 1-1/8"...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$115.00
$81.90
BEST 1E Series Standard 1-1/8" Mortise Cylinder, 6-Pin SFIC Prep Less Core, C208 Straight Cam, For Use With Sargent, Satin Chrome Finish

BEST 1E Series Standard 1-1/8" Mortise Cylinder with 6-Pin SFIC Prep and C208 Straight Cam

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Model: 1E64-C208RP2626
From the E Series Cylinders Collection
$115.00
$81.90
Selected Finish is

In Stock (leaves warehouse same day if ordered before 3pm ET)

$115.00
$81.90
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BEST 1E Series Standard 1-1/8" Mortise Cylinder with 6-Pin SFIC Prep and C208 Straight Cam

Professional Mortise Cylinder for Sargent Lock Compatibility

The BEST 1E Series Standard Mortise Cylinder delivers professional-grade security with precision-machined brass construction and 1-1/8" standard sizing for mortise lock applications. This cylinder features 6-pin SFIC preparation without core and includes a C208 straight cam specifically designed for use with Sargent lock systems. The satin chrome finish provides durability and corrosion resistance for long-term performance in commercial and residential applications.

Professional Features & Benefits

  • Standard Mortise Sizing: 1-1/8" diameter provides compatibility with standard mortise lock preparations and industry-standard door hardware.
  • SFIC Interchangeable Core System: 6-pin SFIC preparation allows integration into existing BEST master key systems for flexible access control management.
  • Precision-Machined Construction: Manufactured from brass bar stock for exceptional durability and precise tolerances in demanding applications.
  • Sargent Lock Compatibility: C208 straight cam configuration ensures proper operation with Sargent lock mechanisms and hardware.
  • Enhanced Security Features: Diagonal set screw mounting provides additional security by holding the cylinder securely in the lock housing.
  • Professional Finish: Satin chrome finish offers corrosion resistance and maintains appearance in high-use environments.
  • Master Key Integration: Compatible with existing BEST master key systems for comprehensive access control solutions.

Technical Specifications

  • Collection: E Series Cylinders
  • Commercial/Residential: Residential
  • Department: Door Hardware
  • Parts and Accessories Type: Replacement Parts
  • Product Attribute: Parts and Accessories
  • Product Category: Mechanical Locks
  • Product Group: Parts and Accessories
  • Product Subgroup: Cylinders
  • Product Type: Cylinders
  • Series: 1E Series
  • Subcategory: Parts and Accessories

Installation & Operation

This replacement cylinder is designed for use with compatible mortise lock systems. Refer to the parent lock installation instructions and manufacturer documentation for proper integration. Ensure compatibility with existing hardware and verify cam orientation before installation.

Professional Applications

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

Why Choose BEST Quality?

BEST 1E Series cylinders deliver professional-grade reliability with precision-machined brass construction and diagonal set screw security features. The interchangeable core system provides flexibility for master key integration while maintaining the durability standards required for demanding commercial applications. Engineered for dependable performance where security and access control are essential.

Manufacturer Resources

E Series Service Manual

Product Specs

Series:
1E Series
Subcategory:
Parts and Accessories
Product Group:
Parts and Accessories
Product Subgroup:
Cylinders
Product Type:
Cylinders
Commercial/Residential:
Residential
Collection:
E Series Cylinders
Parts and Accessories Type:
Replacement Parts
Product Attribute:
Parts and Accessories
Product Category:
Mechanical Locks
Department:
Door Hardware

BEST 1E64-C208RP2626 – Frequently Asked Questions

1) Will the BEST 1E Series 1-1/8 inch mortise cylinder work in a Sargent mortise lock?
Yes. The C208 straight cam on this 1E Series cylinder is the cam configuration for Sargent lock mechanisms, and the 1-1/8 inch length is the standard mortise cylinder length that drops into a standard mortise lock cylinder prep. Cam matters more than anything else on a mortise cylinder swap: the cam is what actually drives the lock's retractor, so a cylinder with the wrong cam threads in fine and then does nothing. If the Sargent lock you are working on calls for a different cam, that is a different part number, not an adjustment you make in the field.
2) Does the BEST 1E mortise cylinder come with a core and keys?
No core, no keys. The 1E cylinder ships as a 6-pin SFIC housing prepped less core, so you supply the small format interchangeable core yourself. That is the point of the part for anyone running a BEST keyway house: you drop your own 6-pin SFIC core in and the opening falls straight into the master key system you already have. If you need a cylinder that arrives keyed and ready to hang, an SFIC housing is the wrong choice.
3) I need a 1-1/8 inch 6-pin mortise cylinder but not on a BEST keyway. What else is there?
The Detex MC65 is a 1-1/8 inch 6-pin mortise cylinder in a Schlage C keyway, which is the one to look at if the building is keyed Schlage C rather than BEST. It arrives as a conventional cylinder rather than an SFIC housing, so it is keyed rather than cored. If the length is what is driving you and you can go longer, the Corbin Russwin 1080 is a 1-1/2 inch LFIC 6-pin mortise cylinder with an A01 cam for Schlage L9000 mortise locks, but note that is large format interchangeable core, not the small format core the BEST 1E takes. LFIC and SFIC cores are not interchangeable with each other.
4) Can I use the BEST 1E mortise cylinder in a rim exit device or a rim lock?
No. A mortise cylinder threads into a mortise lock case and turns a cam. A rim device needs a rim cylinder, which mounts through the door on a back plate and drives a tailpiece instead. For rim applications, the Schlage 20-021 is a 6-pin rim cylinder with a vertical tailpiece cam and the 20-022 is the same with a horizontal tailpiece cam, and the Corbin Russwin 3070 is a 6-pin rim cylinder housing with a 1-7/8 inch tailpiece. If you want to stay on interchangeable core in a rim application, the Schlage 20-057 is a 6-pin FSIC rim cylinder with a convertible tailpiece cam.
5) Will the BEST 1E mortise cylinder replace the cylinder in a knob or lever lock?
No. This is a threaded mortise cylinder for a mortise lock case, not a key-in-knob or key-in-lever cylinder, and the two are not interchangeable. For knob and lever bodies, the Kaba Ilco 1539 Series is a key-in-knob and lever universal cylinder, the 1579 Series is a knob and lever cylinder for Sargent, and the Falcon A23161-05 G is a key-in-lever cylinder for the RU/T Series in a 6-pin G keyway. If the lock you are replacing on is a Sargent knob or lever rather than a Sargent mortise lock, the Ilco 1579 is the one that matches the application.
6) What is a comparable 1-1/8 inch 6-pin mortise cylinder if I am not on a BEST keying system?
The Detex MC65 is a 1-1/8 inch 6-pin mortise cylinder supplied with a Schlage C keyway, so it drops into the same 1-1/8 inch mortise cylinder prep without requiring a BEST small format interchangeable core. The BEST 1E Series cylinder in 1-1/8 inch length is prepped for a 6-pin SFIC and ships less core, which is what lets it join an existing BEST master key system. Choose the MC65 when the building keys Schlage C and the 1E when the core has to come out of a BEST system.
7) I need a straight cam mortise cylinder but the lock case needs a longer cylinder than 1-1/8 inch. What else is there?
The Corbin Russwin 1000 Grade 1 Series mortise cylinder is a 1-1/2 inch length with an A02 straight cam, so it keeps the straight cam geometry while reaching further into a deeper case or a thicker door. The BEST 1E Series cylinder is a 1-1/8 inch mortise cylinder with a C208 straight cam for Sargent locks. Measure from the face of the lock to the cam before choosing between the two lengths.
8) Is a cloverleaf cam mortise cylinder interchangeable with a straight cam one?
No. The Corbin Russwin 1070 Grade 1 Series 1-1/4 inch 6-pin mortise housing uses an A01 cloverleaf cam, and the Corbin Russwin 1080 1-1/2 inch LFIC mortise cylinder uses an A01 cloverleaf cam intended for Schlage L9000 mortise locks. The BEST 1E Series cylinder uses a C208 straight cam for Sargent locks. The cam is the part that drives the lock hub, so a cloverleaf cam will not actuate a case expecting a straight cam even though the cylinder threads are the same. Confirm the cam callout the lock manufacturer specifies before ordering.
9) My opening takes a rim device, not a mortise lock. What cylinder do I order?
A rim exit device needs a rim cylinder with a tailpiece rather than a threaded mortise cylinder with a cam. The Schlage Commercial 20-021 is a 6-pin rim cylinder with a vertical tailpiece cam and two keys, and the 20-022 is the same 6-pin rim cylinder with a horizontal tailpiece cam. The Corbin Russwin 3070 is a 6-pin rim cylinder housing with a 1-7/8 inch tailpiece. The BEST 1E Series cylinder is a mortise cylinder with a C208 straight cam and will not mount to a rim device.
10) What do I use for a Sargent knob or lever instead of a Sargent mortise lock?
The Kaba Ilco 1579 Series is a knob and lever cylinder for Sargent, which is the format a key-in-knob or key-in-lever chassis accepts. The BEST 1E Series 1-1/8 inch cylinder is a threaded mortise cylinder with a C208 straight cam for Sargent locks and suits a mortise case rather than a knob or lever chassis. Identify whether the Sargent hardware on the door is a mortise lock body or a bored lockset before ordering.
11) What is the difference between an SFIC mortise cylinder like the BEST 1E and a conventional keyed mortise cylinder?
An SFIC housing is a shell. The BEST 1E takes a removable 6-pin small format interchangeable core, so rekeying an opening is a control key turn and a core swap, no lock disassembly and no pinning at the door. A conventional mortise cylinder such as the Corbin Russwin 1000 Series 1-1/2 inch with an A02 straight cam is pinned as one piece, so rekeying means pulling the cylinder and repinning it. For a property manager with turnover across a lot of doors, the interchangeable core is the reason to buy. For a single door that never changes hands, the conventional cylinder is less to specify.
12) What finish and length does the BEST 1E mortise cylinder come in?
One configuration only: 626 satin chrome, 1-1/8 inch length, straight cam, with RP2 6-pin mortise rings. There is no other finish or length option to pick, so if the rest of the trim on the opening is bronze or brass, this cylinder will not match, and if the lock calls for a longer cylinder to reach through thicker trim or a thicker door, 1-1/8 inch is not going to get there.
13) What are the RP2 rings on the BEST 1E cylinder for?
Spacing. The RP2 6-pin mortise rings shim the cylinder out so the face sits flush with the escutcheon or trim instead of sitting recessed or standing proud. On a mortise lock the cylinder threads in and the diagonal set screw in the lock case holds it at depth, so you turn the cylinder to the correct cam clock position and back the rings to take up the gap. Get the ring stack wrong and either the cam does not reach the retractor or the cylinder face stands off the door.
14) Can I put the BEST 1E cylinder onto my existing BEST master key system?
That is what it is built for. The 6-pin SFIC prep accepts the same small format cores your other BEST openings run, so the door lands on the existing master and grand master levels the moment you install a core cut to that system. Nothing about the cylinder itself sets the keying; the core does. Order it with the core pinned to your system by your locksmith or your in house key control, and the opening reads exactly like the rest of the building.
15) I want an interchangeable core cylinder but the system is full size core, not small format. What is the equivalent?
The Schlage Commercial 20-057 is a 6-pin FSIC rim cylinder with a convertible tailpiece cam, and the 20-057-C is a full size interchangeable core cylinder in the C keyway with a 643E aged bronze finish. Both take a full size core. The BEST 1E Series cylinder is prepped for a 6-pin small format interchangeable core and ships less core. FSIC and SFIC cores are different physical sizes, so the housing has to match the core the facility already stocks.
16) Is an aluminum storefront cylinder pull the same thing as a mortise cylinder?
No. The Adams Rite 4024 cylinder pull mounts with a trim plate and the 4025 five pin tumbler cylinder pull mounts with through-screws, both designed for the Adams Rite MS1847 deadlock or deadlatch, and the 4026 five pin tumbler cylinder pull is for the Adams Rite 5017 wood door deadlock or deadlatch. Those are pull assemblies that carry a cylinder, not a replacement cylinder for a mortise lock case. The BEST 1E Series cylinder is a threaded mortise cylinder with a C208 straight cam.
17) I need a Grade 1 mortise cylinder for a narrow stile aluminum door. What fits?
The Adams Rite 4036 is a Grade 1 mortise cylinder in the 4036 Series with a 1/2 inch minimum door thickness, which is what makes it workable in a narrow aluminum stile. The BEST 1E Series 1-1/8 inch mortise cylinder is built for standard mortise lock preparations with a diagonal set screw holding it in the lock housing. Match the cylinder to the stile depth the opening actually has.
18) What is a simpler replacement cylinder for a residential deadbolt or knob lock?
For bored residential hardware the Kaba Ilco 1539 Series key-in-knob and lever universal cylinder, the 1549 Series key-in-deadbolt cylinder, and the 1599 key-in-knob replacement cylinder cover deadbolt and knob applications without threaded mortise prep. The BEST 1E Series cylinder is a threaded 1-1/8 inch mortise cylinder that requires a mortise lock case. Pick by the hardware already in the door rather than by the key.
19) Can I use a rim cylinder made for a Kwikset or Emtek deadbolt in a mortise lock?
No. The Medeco 1012040 is a 6-pin lazy motion rim cylinder for Kwikset single cylinder deadbolts, the 1065244 is a 5-pin lazy motion rim type cylinder with an Emtek tailpiece, and the 1075127 is a 5-pin rim type lazy motion single cylinder for handlesets and deadbolts. All three drive through a tailpiece sized to a specific deadbolt. The BEST 1E Series mortise cylinder threads into a mortise case and drives a C208 straight cam instead.
20) What is the BEST 1E cylinder made of, and will satin chrome hold up in a high traffic entrance?
Brass bar stock, machined, with a 626 satin chrome finish. Brass gives the thread and cam tolerances that keep a mortise cylinder turning smoothly under constant use, and satin chrome is the corrosion resistant finish that hides wear and fingerprints better than a bright plate, which is why 626 is the default across most commercial openings. It is a reasonable choice for school, healthcare, and multi-tenant corridor doors that get cycled all day.
21) Do I need any special tools to install the BEST 1E mortise cylinder?
A cylinder wrench and a hex key cover it. The cylinder threads into the lock case, and a diagonal set screw in the case edge locks it at depth, which also makes it harder to wrench out from the outside than a straight set screw arrangement. Back the set screw off, thread the cylinder in until the cam sits at the clock position the lock wants, then retighten. Setting the core into the housing afterward takes an SFIC control key. BEST publishes an E Series service manual covering the cylinder line if you want the procedure in front of you.
22) Which cylinder retrofits an Arrow interconnected lock or an Emtek handleset?
The Medeco 1065140 is a 5-pin retrofit cylinder for the Arrow JL interconnected lock and for an Emtek handleset or deadbolt outside cylinder, and the Emtek CY4 is a cylinder sold each for Emtek hardware. The BEST 1E Series is a 1-1/8 inch mortise cylinder with 6-pin SFIC prep and suits mortise lock bodies rather than interconnected or handset trim.
How fast can I get the BEST 1E64-C208RP2626 delivered?
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Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the BEST 1E64-C208RP2626 come with a warranty?
Absolutely. The BEST 1E64-C208RP2626 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the BEST 1E64-C208RP2626?
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