Corbin Russwin ML2000 Series
Corbin Russwin ML2057 NSA LC Storeroom Mortise Lock, NS Lever, A Rose, Less Cylinder
Finish: Bright Brass (605)
Faded finishes are special order.
Configuration: Standard
- Door to door shipping
- Technical support on every order: 346-777-3031
Overview
About this product
The Corbin Russwin ML2057 NSA is a storeroom function (F07) mortise lock from the ML2000 Series, fitted with the Newport lever (NS) on the A wrought rose. It is built for storerooms, mechanical rooms and janitor closets.
Built to ANSI/BHMA Grade 1, the lock is UL10c listed with a 3 hour fire rating. It is made for 1-3/4 inch doors at a 2-3/4 inch backset, throws the latch 3/4 inch, and is listed as ADA compliant under A117.1.
This LC version is supplied less cylinder, so you can add a mortise cylinder keyed to your building's existing system.
What the function does
The latchbolt is retracted by the inside lever or by a key from outside. The outside lever is always rigid and the inside lever is always free. An auxiliary latch deadlocks the latchbolt.
Highlights
- Outside lever always rigid: key required from outside
- Inside lever always free
- Door is locked whenever it closes
- Newport lever with A wrought rose
- ANSI/BHMA Grade 1, 3 hour fire rating, UL10c listed
- Fits 1-3/4 inch doors with 2-3/4 inch backset
- Supplied less cylinder for your own keying
Photo shows the Bright Brass (605) and Satin Brass (606) and Satin Bronze (612) and Dark Bronze (613) and Dark Bronze (613E) and Satin Nickel (619) and Bright Chrome (625) and Satin Chrome (626) and Satin Stainless Steel (630) and Black Suede (BSP) finish. Other finishes are the same product in the finish you select.
How it works
Storeroom function, ANSI F07
The outside lever is always locked and only a key opens it. The inside lever is always free, so nobody gets locked in. Common on storage, mechanical and janitor rooms.
Specifications
- Model
- ML2057 NSA
- Function
- ML2057 Storeroom or closet, ANSI F07
- Grade
- ANSI/BHMA Grade 1
- Series
- ML2000
- Lever
- Newport
- Trim
- A-Wrought Rose
- Door thickness
- 1-3/4 Inch
- Backset
- 2-3/4 Inch
- Latch throw
- 3/4 Inch
- Latch face
- 8" x 1-1/4" x 3/32"
- Strike
- ANSI-Straight Lip
- Fire rating
- 3 Hours
- UL listing
- UL10c
- ADA compliant
- Yes
- Standards
- ANSI/BHMA A156.13 Series 1000, Operational and Security Grade 1, A117.1 Accessibility Code; UL Listed
- Projection
- 2-5/8 Inch
- Warranty
- 10 Years
- Buy American Act
- Yes
- Finish
- Bright Brass (605)
- SKU
- ML2057 NSA 605 LC
Send a photo of the door edge and the hardware on it. We'll match the part.
Send a photoCommon questions
Does the storeroom lock ever stay unlocked?
No. The outside lever is always rigid, so the door can only be opened from outside with a key.
Can people inside get out?
Yes. The inside lever is always free and retracts the latchbolt.
What door does this lock fit?
It is made for 1-3/4 inch thick doors with a 2-3/4 inch backset, using a mortise pocket for the ML2000 Series lockbody.
Is it fire rated?
The specifications list a 3 hour fire rating with UL10c listing. Confirm the rating needed on the door's label.
Which finishes are available?
Finish options include 605, 606, 611, 612, 613, 626, 630 and others; choose the one that matches your other hardware.
Does it come with a cylinder?
No. LC means less cylinder, so a compatible mortise cylinder must be added to operate the key functions.
Before you order
Buying for a whole job?
Send the hardware schedule or drawing. Door, frame and hardware quoted together so nothing shows up missing.