Corbin Russwin ML2054 Grade 1 ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$667.10
$275.29
Corbin Russwin Corbin Russwin ML2054 Entrance or Office - Mortise Lockbody Only COR-ML2054-LL

Corbin Russwin ML2054 Grade 1 Entrance or Office Mortise Body Only

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Model: ML2054-LL-626
From the ML2000_Series Collection
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$667.10
$275.29
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Corbin Russwin ML2054-LL Entrance/Office Mortise Lockbody, Grade 1, Field Reversible, 1-3/4" Door

Commercial-Grade Mortise Lock Body for Entrance and Office Applications

The Corbin Russwin ML2054-LL is a Grade 1 mortise lockbody from the ML2000 Series, engineered for demanding entrance and office applications in commercial, institutional, industrial, and government environments. Conforming to ANSI function F04, this lockbody allows the latchbolt to operate freely from either side unless the outside grip is locked, with the outside grip controlled by thumbturn and the inside grip always free. Constructed of heavy-gauge steel with a 1" stainless steel deadbolt and designed for 1-3/4" (44mm) door thickness, the ML2054-LL delivers the durability and versatility required for high-traffic facilities including offices, schools, hospitals, and hotels.

Professional Features & Benefits

  • ANSI/BHMA Grade 1 mortise lock per A156.13 Series 1000, Operational and Security Grade 1
  • UL Cycle above and beyond: 14.5 Million Cycles (Verification ID: V875753)
  • Patented Quick Reversible latchbolt — reverse handing without disassembling the lock case
  • Multi-function capability: 12 functions configurable from one ML2054 lockbody
  • Heavy-gauge steel lockcase 5-7/8" x 4" x 15/16"; 1" stainless steel deadbolt, 1" throw
  • 3/4" (19mm) throw anti-friction two-piece latchbolt requires less force to close
  • Wide variety of trim designs including Muséo®, Vineyard™, Behavioral Health (BHSS/BLSS)
  • Status indicator options for locked/unlocked visibility (sectional and escutcheon trim)
  • Motorized Electric Latch Retraction (MELR) available for ML20900 series
  • Thru-bolted trim designs for proper alignment and increased security
  • Can be used with new or existing Corbin Russwin key systems; accepts most other manufacturers' cylinders
  • UL/cUL listed, UL10C positive pressure; 3-hour fire door up to 4' x 10' single or 8' x 10' pair
  • Ten-year mechanical warranty; five-year MELR; two-year electrical

Technical Specifications

  • Grade: ANSI/BHMA A156.13 Series 1000, Operational and Security Grade 1
  • Handing: Handed; quick reversible — re-handed without disassembling the lock case
  • Door Thickness: 1-3/4" (44mm) standard; optional thicknesses available
  • Backset: 2-3/4" (70mm)
  • Lockcase: Heavy-gauge steel, 5-7/8" (149mm) x 4" (102mm) x 15/16" (24mm)
  • Armored Front: Wrought brass, bronze, or stainless steel, 8" x 1-1/4"
  • Latchbolt: 2-piece mechanical with anti-friction insert, 5/8" x 1" x 3/4" (19mm) throw
  • Auxiliary Latchbolt: 9/16" (14mm) effective throw; deadlocking
  • Deadbolt: One-piece stainless steel, 19/32" x 1-1/4" x 1" (25mm) throw
  • Strike: Wrought brass, bronze, or stainless steel, ANSI straight lip, 4-7/8" x 1-1/4" x 1-1/8" lip to center
  • Cylinder: Brass, 6-pin L4 keyway, 0-bitted standard
  • Spacing: C. to c. knob/lever to cylinder: 3-5/8" (92mm); knob/lever to thumbturn: 2-7/16" (62mm)
  • Certifications: ANSI/BHMA A156.13 Grade 1; UL/cUL UL10C 3-hour positive pressure; ADA A117.1; California State Fire Marshal; Windstorm/Hurricane certified
  • Warranty: Ten-year mechanical; five-year MELR; two-year electrical

Professional Applications

  • Commercial Office Buildings
  • Educational Facilities and Schools
  • Healthcare Institutions and Hospitals
  • Hotel and Hospitality Properties
  • Industrial and Warehouse Facilities
  • Government and Municipal Buildings
  • Institutional and High-Traffic Commercial Environments

Tamper-Resistant Design

The ML2054-LL is compatible with the ML2000VR (Vandal Resistant) Series, which features stainless steel escutcheons with tapered edges and Torx® pin tamper-resistant screws. When paired with Corbin Russwin's patented high-security Pyramid or Access 3® cylinders, the ML2054-LL provides a formidable barrier against intrusion and abuse in demanding commercial environments.

Why Choose Corbin Russwin Quality?

Corbin Russwin ML2000 Series mortise lock products deliver professional-grade reliability through heavy-gauge steel construction and a patented Quick Reversible latchbolt, with UL cycle testing verified at 14.5 Million Cycles (Verification ID: V875753) for proven long-term performance. The ML2054-LL is backed by a 10 Year Limited warranty, providing lasting confidence for facility managers and security professionals. Engineered for the most demanding commercial, institutional, and government applications where dependable security and operational versatility are essential.

Product Specs

Subcategory:
Mortise Locks
Product Group:
Mechanical Locks
Series:
ML2000 Series
Grade:
Grade 1
Standard Latch:
3/4" Latchbolt
Standard Strike:
ANSI straight lip standard, 4-7/8" x 1-1/4" x 1-1/8"
Warranty:
10 Year Limited
Keyed Function:
Single Cylinder
ANSI/BHMA:
F04
Product Subgroup:
Mortise Lock Bodies
Product Type:
Mortise Lockbody Only
Keyed:
Yes
Commercial/Residential:
Commercial
Function Description:
Mortise Lockbody Only
Lock Type:
Mortise
Lock Function:
Entrance/Office
Product Attribute:
Mortise Locks
Electronic:
No
Tags:
ML2054LL630, ML2054-LL-630, ML2054-LL-626
Product Model:
ML2054
Collection:
ML2000_Series
Product Function:
Entrance/Office
Door Hand Direction:
Field Reversible
Door Thickness Range:
1-3/4"
Product Category:
Mechanical Locks
Product Substrate:
Brass or Bronze
Department:
Door Hardware

Corbin Russwin ML2054-LL-626 – Frequently Asked Questions

1) Will the Corbin Russwin ML2054 mortise lock body fit a 1-3/4 inch door with a 2-3/4 inch backset?
That is exactly what the ML2054 is built for. Standard door thickness is 1-3/4 inches (44mm) and the backset is 2-3/4 inches (70mm), which is the normal commercial mortise backset. The lock case itself is heavy-gauge steel at 5-7/8 x 4 x 15/16 inches, so the door has to be prepped for a standard ANSI mortise pocket of that size. Optional door thicknesses are available if the opening is thicker than 1-3/4.
2) What does ANSI F04 entrance/office function actually do on a mortise lock?
F04 means the latchbolt retracts from either side unless the outside lever or knob is locked. Locking is done by a thumbturn on the inside, and the inside grip is always free for egress. Turning the key from outside retracts the latch. There is also a 1 inch stainless steel deadbolt with a 1 inch throw for when the room is left secured. This is the standard office door function: staff can lock the outside from within without a key.
3) Do I have to order the Corbin Russwin ML2054 handed, or can I re-hand it on the job?
You can re-hand it in the field without opening the lock case. The ML2000 Series uses a patented Quick Reversible latchbolt, so one body covers left and right hand openings. That is worth knowing if you are stocking spares for a building with mixed handing: one part number covers both.
4) Does the ML2054 lockbody come with the lever trim, cylinder and strike, or is it just the case?
It is the lock body only. Levers or knobs, roses or escutcheons, the cylinder and the thumbturn are all ordered separately, so plan the trim design and finish at the same time you order the case. A strike is specified to match: ANSI straight lip, 4-7/8 x 1-1/4 with 1-1/8 inch lip to center. If you are replacing only a worn-out case behind existing Corbin Russwin ML2000 trim, the body-only part is what you want.
5) Can I use the Corbin Russwin ML2054 with cylinders from another manufacturer, or do I have to key it into a Corbin Russwin system?
Either works. The ML2054 can be keyed into a new or existing Corbin Russwin system, and it accepts most other manufacturers' cylinders, so a locksmith who keys the building on another brand's keyway can carry the existing system across. The Corbin Russwin standard is a brass 6-pin L4 keyway supplied 0-bitted. It is a single cylinder lock, with the thumbturn on the inside rather than a second cylinder.
6) Will the ML2054 latch into the strike already in my frame?
Depends what is in the frame now. The latchbolt is a two-piece anti-friction design with a 3/4 inch (19mm) throw, backed by a deadlocking auxiliary latch with 9/16 inch (14mm) effective throw, and the deadbolt throws a full 1 inch. If the existing pocket is a standard ANSI strike at 4-7/8 x 1-1/4 you are generally lining up, but the strike box has to be deep enough to take the 1 inch deadbolt, not just the latch. Where the old lock was latch-only with a shallow box, plan on a new strike and a deeper frame cutout.
7) What is the closest equivalent to a Corbin Russwin ML2054 mortise lock body from another manufacturer?
The Accentra 8800FL Series mortise lock body is the closest peer. Both are Grade 1 mortise lock bodies, and both are supplied as a lock body with field reversible handing, so a single part covers a left-hand or right-hand opening without swapping the case. The ML2054 is the Entrance/Office function, ANSI F04, with a 2-3/4 inch backset and a 5-7/8 inch by 4 inch by 15/16 inch steel case for a 1-3/4 inch door. Confirm the Accentra body is ordered in the entrance/office function before treating it as a drop-in, since the function is selected separately from the body family.
8) Can I substitute an Accentra 8800FL lock body for a Corbin Russwin ML2054 on the same door prep?
Both are Grade 1 mortise lock bodies with field reversible handing, so they are peers on grade and handing. What decides the swap is the pocket and the trim already on the door: the ML2054 case is 5-7/8 inch by 4 inch by 15/16 inch on a 2-3/4 inch backset with an 8 inch by 1-1/4 inch armored front, and its spacing runs 3-5/8 inch center to center from lever to cylinder and 2-7/16 inch from lever to thumbturn. Trim, cylinder, and thumbturn hole locations are drilled to those dimensions, so verify the replacement body matches them before reusing the existing prep, or plan on new trim.
9) What center-to-center spacing do I need for the trim cutouts on an ML2000 mortise lock?
Knob or lever centerline to cylinder is 3-5/8 inches (92mm), and knob or lever to thumbturn is 2-7/16 inches (62mm). Those are the numbers that decide whether an escutcheon or sectional trim you already have lines up with the case. The armored front measures 8 x 1-1/4 inches in wrought brass, bronze or stainless.
10) Is one ML2054 body enough if the building needs several different lock functions?
Largely, yes. A single ML2054 case is configurable to 12 functions, so a facility standardizing on ML2000 can stock fewer part numbers and set the function at install rather than ordering a distinct body for each opening. That is the practical argument for the ML2000 in a school or hospital where classroom, office and storeroom doors all sit on the same corridor.
11) Will the ML2054 hold up on a high-traffic entrance door?
It is UL cycle tested at 14.5 million cycles (Verification ID V875753) and holds ANSI/BHMA A156.13 Grade 1 for both operational and security, which is the top grade for mortise locks. Construction is heavy-gauge steel case with a one-piece stainless steel deadbolt. For a main entrance, a school corridor or a hotel back-of-house door, that is the right duty level.
12) What is another Grade 1 mortise lock body with field reversible handing besides Corbin Russwin?
The Accentra 8800FL Series mortise lock body is the closest cross-brand equivalent, also Grade 1 and also field reversible for handing. Choose on the key system and trim you are already standardized on: the ML2054 keys into existing Corbin Russwin systems and accepts most other manufacturers' cylinders, so if the building is already on Corbin Russwin trim and keying, staying with the ML2000 avoids re-trimming the door.
13) Is there a vandal resistant or behavioral health version of the Corbin Russwin ML2000 mortise lock?
Both, on the trim side. The ML2054 works with the ML2000VR vandal resistant series, which uses stainless steel escutcheons with tapered edges and Torx pin tamper-resistant screws, and it can be paired with Corbin Russwin Pyramid or Access 3 high-security cylinders. For psychiatric and behavioral health openings, BHSS and BLSS ligature-resistant trim designs are offered on the same body. Trim is specified separately from the lock case.
14) Does the ML2054 mortise lock have any electrified or electric latch retraction option?
The ML2054 itself is a mechanical, non-electronic lock body. Motorized Electric Latch Retraction is offered on the ML20900 series rather than on this body, so if the opening needs the latch pulled back by an access control system or a card reader, that is the family to specify instead. For a standard keyed entrance or office door with no power at the frame, the mechanical ML2054 is the part.
15) The opening is a 3-hour rated fire door. Does the choice of mortise body change?
It narrows it. The Corbin Russwin ML2054 is UL/cUL listed to UL10C positive pressure for a 3-hour fire door up to 4 ft by 10 ft single or 8 ft by 10 ft pair, and it carries ANSI/BHMA A156.13 Grade 1 along with ADA A117.1 and California State Fire Marshal listings. The Accentra 8800FL Series is also a Grade 1 mortise body, but grade alone does not establish a fire label, so confirm the specific UL10C listing and the maximum door size for any body you put on a rated opening.
16) I need a keyed entrance mortise lock, not just the case. Is a bare lock body the wrong part?
The Corbin Russwin ML2054-LL is the mortise lock body only, so it ships as the case without lever trim. The Accentra 8800FL Series is likewise a mortise lock body. If the door already has serviceable trim and you are replacing a worn case, the body is the right part; if you are hanging a complete opening, order the matching trim and cylinder alongside it. The ML2054 is keyed with a single cylinder, brass 6-pin L4 keyway, 0-bitted standard, and it accepts most other manufacturers' cylinders, so an existing keyway on the building's system can often be carried over.
17) How many finishes does the ML2054 mortise lock body come in?
Fourteen, running from 605 bright brass, 606 satin brass, 611 bright bronze, 612 satin bronze, 613 and 613E oil-rubbed and dark oxidized bronze, 618 bright nickel, 619 satin nickel, 625 bright chrome, 626 satin chrome, 629 bright stainless and 630 satin stainless, through to 722 black oxidized bronze oil-rubbed and BSP black suede powder coat. For a property manager matching existing openings, 630 satin stainless and 626 satin chrome are the two that turn up on most commercial buildings.
How fast can I get the Corbin Russwin ML2054-LL-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 Corbin Russwin ML2054-LL-626 come with a warranty?
Absolutely. The Corbin Russwin ML2054-LL-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 Corbin Russwin ML2054-LL-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
Why buy the Corbin Russwin ML2054-LL-626 from ZenSupply?
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