TownSteel MSE Series ANSI Grad...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$476.00
$473.08
TownSteel TownSteel MSE Series Exit Function - Heavy Duty Standard Escutcheon Mortise Lock, Non-Keyed TWS-MSE-31

TownSteel MSE Series ANSI Grade 1 Heavy Duty Mortise Lock with Escutcheon Trim, Non-Keyed

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Model: MSE-R-T-31-626
$476.00
$473.08
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$476.00
$473.08
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TownSteel MSE Series ANSI Grade 1 Heavy Duty Mortise Lock with Escutcheon Trim, Non-Keyed

The TownSteel MSE Series is an ANSI Grade 1 heavy duty mortise lock engineered for single opening, stand-alone door applications and ready for integration into sophisticated access control systems. This non-keyed escutcheon trim model features a 2-3/4" backset, a 3/4" projection stainless steel split anti-friction latch bolt, and a 10-9/16" x 2-3/8" x 9/32" brass escutcheon plate. Forged brass/cast zinc levers, a stainless steel ANSI strike, and a stainless steel guard bolt combine for dependable commercial-grade performance backed by a 2-year manufacturer's warranty.

Key Features

  • Backset: 2-3/4" backset for standard commercial mortise lock door preparations.
  • Latch Bolt: 3/4" projection, stainless steel, split, anti-friction design for smooth, reliable latching.
  • Faceplate: 1-1/4" x 8" stainless steel faceplate for corrosion resistance and long-term durability.
  • Escutcheon Trim: 10-9/16" x 2-3/8" x 9/32" brass escutcheon plate for a heavy duty commercial appearance.
  • Strike: ANSI strike, plated/stainless steel, for precise alignment and secure engagement.
  • Guard Bolt: Stainless steel guard bolt helps resist tampering at the latch.
  • Lever Construction: Forged brass/cast zinc levers plated to match finish symbols for consistent commercial finishes.
  • Thumb Turn: Brass, Classic Visible standard thumb turn for reliable manual operation.
  • Stop Works: Stainless steel, rocker type stop works for durable internal operation.
  • Status Sensor Options: Optional REX (request-to-exit), PRIV (privacy), DAJ (door ajar), and MKO (mechanical key override) sensors support access control system integration.

Certifications & Compliance

  • ANSI Grade 1
  • 2-Year Manufacturer's Warranty

Technical Specifications

  • Product Group: Mechanical Locks
  • Product Subgroup: Mortise Locks and Trim
  • Product Type: Mortise Locks
  • Subcategory: Mortise Locks
  • Keyed Function: Non-Keyed
  • Commercial/Residential: Commercial
  • Keyed: No
  • Lock Function: Non-Keyed
  • Product Attribute: Mortise Locks
  • Electronic: No
  • Product Category: Mechanical Locks
  • Department: Door Hardware
  • PDF:TownSteel Comprehensive Product Catalog: https://zensupply.com/content/pdf/townsteel/townsteel-comprehensive-product-catalog.pdf
  • PDF:TownSteel Product Showcase: https://zensupply.com/content/pdf/townsteel/townsteel-product-showcase.pdf

Typical Applications

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

Why TownSteel MSE?

TownSteel MSE Series mortise locks deliver ANSI Grade 1 commercial-grade reliability through stainless steel latch, strike, guard bolt, and stop works components paired with a durable brass escutcheon and forged brass/cast zinc lever construction. Designed for both stand-alone door openings and integration into advanced access control systems, the MSE Series offers the flexibility and dependable performance demanded in high-traffic commercial environments.

Product Specs

Series:
MSE Series
Product Group:
Mechanical Locks
Product Subgroup:
Mortise Locks and Trim
Product Type:
Mortise Locks
Subcategory:
Mortise Locks
Keyed Function:
Non-Keyed
Commercial/Residential:
Commercial
Lock Type:
Mortise
Keyed:
No
Lock Function:
Non-Keyed
Grade:
Grade 1
Duty Level:
Heavy Duty
Product Attribute:
Mortise Locks
Electronic:
No
Product Function:
Exit
Product Category:
Mechanical Locks
Department:
Door Hardware

TownSteel MSE-R-T-31-626 – Frequently Asked Questions

1) What does the exit function do on the TownSteel MSE Series mortise lock, and is a key needed?
Exit function means free egress from the inside at all times, with no key involved. The MSE exit-function lock is non-keyed, so there is no cylinder to order or key to a system. It is a mechanical lock, not electronic. If you need key control on the outside, this is the wrong configuration and you want a keyed mortise function instead.
2) Will the TownSteel MSE mortise lock drop into a standard 2-3/4 inch backset mortise pocket?
Yes. The MSE lock body uses a 2-3/4 inch backset, which is the standard commercial mortise backset, and the faceplate is 1-1/4 by 8 inches stainless steel. If your existing pocket was cut for a standard ANSI mortise body with that faceplate size, the MSE body fits the same prep.
3) Will this TownSteel mortise lock latch into the strike already in my frame?
The latch bolt throws 3/4 inch and is a split, anti-friction stainless steel design, and the lock ships with an ANSI strike in plated or stainless steel. If your frame is prepped for an ANSI strike, the supplied strike drops into the same cutout. Frames cut for a smaller T-strike will need to be modified or a different strike used.
4) Do I have to specify handing when ordering the TownSteel MSE mortise lock?
Yes, handing is required. You choose LH (left hand), RH (right hand), LHR (left hand reverse) or RHR (right hand reverse) at order time. Stand outside the opening: if the hinges are on your left it is left hand, and if the door swings toward you it is a reverse hand.
5) What is the closest Grade 1 mortise equivalent to the TownSteel MSE exit function lock if the opening needs a keyed cylinder?
The TownSteel MSE Series exit function mortise lock is non-keyed, so if the opening needs key control the Sargent 7925 is the nearest peer: it is a Grade 1 heavy duty mortise lock with a corridor/dormitory exit function and a single cylinder deadbolt, from the 7900 Series, and it uses rose trim rather than the MSE escutcheon. The Accentra 8805FL from the 8800 Series is another Grade 1 mortise option, set up as a storeroom function with an Arcadia lever.
6) Our access control spec calls for an electrified mortise lock. Does the TownSteel MSE cover that or do we need a different lock?
The TownSteel MSE Series exit function lock is a mechanical, non-electronic mortise lock, though it is built for integration into access control systems. If the opening needs the lock itself electrified, the Command Access ML190 is a heavy-duty motorized mortise lock with field selectable EL/EU operation on 24VDC, the BEST 45HW is a wired heavy duty electromechanical mortise lock running 12V or 24V, and the Schlage L9092EU with 03A trim is a heavy duty electric lock/unlock outside lever mortise lock with request-to-exit, keyed outside, at 12/24VDC for 1-3/4 inch doors.
7) What size escutcheon plate does the TownSteel MSE lock use, and what is the difference between the Low and Regular options?
The standard escutcheon is brass, measuring 10-9/16 x 2-3/8 x 9/32 inches. Two escutcheon profiles are offered, MSE Low and MSE Regular. Check the stile width on your door against the 2-3/8 inch escutcheon dimension before ordering, since narrow-stile aluminum doors generally will not take an escutcheon trim of that width.
8) Is the TownSteel MSE mortise lock rated for high-traffic commercial openings?
It is an ANSI Grade 1 heavy duty commercial mortise lock, the top grade for durability and strength, which is what institutional and multi-family corridors, schools and healthcare facilities normally specify. Internals back that up: stainless steel latch bolt, stainless steel guard bolt, stainless steel rocker-type stop works, and a brass escutcheon.
9) What lever styles and finishes can I get so the lock matches the rest of my building?
Eight lever designs are offered: Artistic, Congr, Gala, Imperial, Quest, Regal, Sentinel and Tango. Finishes run 605 bright brass, 606 satin brass, 622 matte black, 625 bright chrome, 626 satin chrome, 629 bright stainless and 630 satin stainless. Levers are forged brass or cast zinc plated to match the finish symbol, so trim across a fleet of doors keeps the same appearance. 626 satin chrome and 630 satin stainless are the usual commercial standards.
10) Can I add request-to-exit or door position monitoring to this TownSteel mortise lock for an access control system?
The MS platform supports optional status sensors including REX (request-to-exit), PRIV (privacy), DAJ (door ajar) and MKO (mechanical key override), and the lock is built for stand-alone single openings or integration into an access control system. Those sensors are options you specify at order time, not standard content.
11) I need a passage or non-keyed mortise lock but not TownSteel. What else is comparable?
Two close non-keyed Grade 1 mortise options: the Schlage PM010 passage latch mortise lock, non-keyed, listed for 1-3/4 inch doors, and the Falcon MA101 Grade 1 heavy-duty mortise passage lock, which is field reversible and carries a fire rating. If you want escutcheon trim rather than a rose, the Hager 3810E is a Grade 1 passage mortise lock with escutcheon and a 2-3/4 inch backset for 1-3/4 to 2-1/2 inch doors, matching the MSE's backset.
12) Should I use the non-keyed MSE exit function or a keyed mortise lock for a dorm or apartment corridor door?
Pick by whether the outside lever ever needs to be locked. The MSE exit function is non-keyed, so the inside always exits free and there is no outside key control. For a dorm corridor where you want a deadbolt and key on the corridor side, a keyed dormitory-function lock such as the Sargent 7925 Grade 1 heavy-duty mortise lock with single cylinder deadbolt is the right family. For classrooms, the Corbin Russwin ML2003 or Cal-Royal NM8070 are Grade 1 classroom mortise locksets for 1-3/4 inch doors.
13) Is the TownSteel MSE exit mortise lock the same thing as a classroom mortise lock?
No. The TownSteel MSE Series covered here is the exit function, non-keyed. A classroom function is a different lock: the Cal-Royal NM8070 is a Grade 1 classroom mortise lockset with auxiliary deadlatch for 1-3/4 inch doors, and the Corbin Russwin ML2003 is a Grade 1 classroom mortise lockset in the ML2000 Series, also for 1-3/4 inch doors. Those are keyed outside for instructor control; the MSE exit function is not.
14) If we want keypad credentials instead of the mechanical TownSteel MSE mortise lock, what standalone options exist?
The TownSteel MSE Series is mechanical and non-electronic. For keypad credentials on a mortise prep, the Alarm Lock DL3500CR is a Grade 1 Trilogy electronic mortise lock with 300 user codes and classroom function for 1-5/8 to 1-7/8 inch doors, the Schlage CO-100-MS is a Grade 1 heavy duty standalone electronic mortise lock with keypad reader in privacy function for 1-3/4 inch doors, and the BEST 45HZ EZ Series is an electronic keypad mortise lock with key override.
15) Can I use a dummy mortise trim in place of the TownSteel MSE exit lock on an inactive leaf?
Only where the leaf never latches. The TownSteel MSE Series exit function lock is a working mortise lock with a 3/4 inch projection stainless steel anti-friction latch bolt and a guard bolt. A dummy has no latch at all: the Schlage L0170 is a Grade 1 heavy duty non-keyed half dummy trim in the L Series for 1-3/4 inch doors, and Emtek's 3102 Memphis and 3104 Hamilton are dummy mortise entrance locksets. Use those for pull-only leaves, not for an opening that has to latch.
16) What should I use instead of the TownSteel MSE mortise lock on a restroom door that needs privacy?
The TownSteel MSE Series exit function is non-keyed but is not a privacy lock. For bed and bath privacy on a mortise prep, the Cal-Royal NM8440 is a Grade 1 privacy mortise lockset with deadbolt for 1-3/4 inch doors, and the Hager 3840S is a Grade 1 privacy mortise lock on a 2-3/4 inch backset for 1-3/4 to 2 inch doors, which matches the 2-3/4 inch backset the MSE uses.
17) We stock BEST 45H mortise lock bodies. How does the TownSteel MSE compare for a heavy duty opening?
Both are heavy duty mortise locks. The BEST 45H is a heavy duty mortise lock body in public entrance function with field reversible operation, and the 45HCA intruder function body is another in the same heavy duty family. The TownSteel MSE Series is a Grade 1 heavy duty commercial mortise lock in exit function, supplied with escutcheon trim, a 2-3/4 inch backset, and a 1-1/4 by 8 inch stainless faceplate; handing is specified at order as LH, RH, LHR, or RHR rather than set in the field.
18) We need an ADA push/pull on a behavioral health door where the TownSteel MSE lever would not suit. What is the alternative?
The TownSteel MSE Series supplies lever trim in styles such as Artistic, Gala, Imperial, Quest, Regal, Sentinel, and Tango. Where a lever creates a ligature concern, the Marks USA 5PDN is a Grade 1 hospital passage mortise push/pull paddleset in the 195 Series, ligature resistant and ADA compliant in satin stainless steel.
19) Will a cylindrical lock substitute for the TownSteel MSE mortise lock?
No. The TownSteel MSE Series is a mortise lock and needs a mortise pocket with a 1-1/4 by 8 inch faceplate and an ANSI strike. A cylindrical lock such as the Schlage PC10, a Grade 1 non-keyed passage cylindrical lock with rose for 1-3/4 inch doors, uses a bored prep instead, so the two are not interchangeable without changing the door prep.
20) Does the TownSteel MSE lock come with a thumb turn on the inside?
Yes, a brass thumb turn in the Classic Visible style is standard on the MSE. That is the inside control paired with the lever trim; there is no cylinder, since this configuration is non-keyed.
21) Is there an installation template for prepping the door for this TownSteel mortise lock?
Yes. TownSteel publishes the MSS template for this mortise prep, linked from the product information, and it gives the mortise pocket, cross-bore and trim hole locations. Prep to a 2-3/4 inch backset with a 1-1/4 by 8 inch faceplate cutout.
22) Is a mortise deadbolt an alternative to the TownSteel MSE exit mortise lock?
They do different jobs. The TownSteel MSE Series exit function lock carries a latch bolt with lever trim so the door operates and latches. A mortise deadbolt only throws a bolt: the Sargent 4874 is a double cylinder mortise deadbolt on a 2-3/4 inch backset, the same backset the MSE uses, and the Kaba Ilco 185 Series is a no-handing mortise deadbolt. Those are typically added alongside a latching lock rather than replacing one.
How fast can I get the TownSteel MSE-R-T-31-626 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
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 TownSteel MSE-R-T-31-626 come with a warranty?
Absolutely. The TownSteel MSE-R-T-31-626 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 TownSteel MSE-R-T-31-626?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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