Corbin Russwin 670F72 Grade 1...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$326.00
$235.91
Corbin Russwin 670F72 - ML2000 Mortise Lock Series Part, Cast "NS" Lever, Outside Lever and Spindle Assembly, for 1-3/4" Door

Corbin Russwin 670F72 Grade 1 - ML2000 Mortise Lock Series Part, Cast "NS" Lever, Outside Lever and Spindle Assembly, for 1-3/4" Door

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Model: 670F72 626
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$326.00
$235.91
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Corbin Russwin 670F72 ML2000 Series Cast NS Outside Lever and Spindle Assembly for 1-3/4" Door

Professional-Grade Mortise Lock Replacement Lever Trim for Commercial Applications

The Corbin Russwin 670F72 is a Cast NS Outside Lever and Spindle Assembly engineered specifically for the ML2000 Mortise Lock Series. Designed for doors with a 1-3/4" thickness, this replacement lever trim component delivers the precision fit and Grade 1 commercial performance that demanding facilities require. The field-reversible door hand direction ensures flexible installation across a wide range of door configurations, making it a versatile solution for corridor, dormitory, and other commercial applications.

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

Why Choose Corbin Russwin Quality?

Corbin Russwin ML2000 Series lock trim components are built to Grade 1 commercial standards, ensuring exceptional durability and reliable performance in the most demanding door hardware applications. The 670F72 assembly is backed by a 10 Year Limited warranty, reflecting the manufacturer's commitment to long-term quality. Engineered for professional installation and field-reversible flexibility, this replacement part maintains the integrity and performance of your ML2000 Mortise Lock system.

Product Specs

Product Group:
Parts and Accessories
Series:
ML2000 Series
Grade:
Grade 1
Warranty:
10 Year Limited
Product Subgroup:
Parts and Accessories
Product Type:
Lock Trim
Commercial/Residential:
Commercial
Lock Type:
Mortise
Subcategory:
Parts and Accessories
Parts and Accessories Type:
Replacement Parts
Product Attribute:
Parts and Accessories
Product Function:
Corridor/Dormitory
Door Hand Direction:
Field Reversible
Product Category:
Mechanical Locks
Department:
Door Hardware

Corbin Russwin 670F72 626 – Frequently Asked Questions

1) Will the Corbin Russwin 670F72 lever assembly fit a 1-3/4 inch door?
That's exactly the door it's built for. The 670F72 outside lever and spindle assembly is cut for 1-3/4 inch (44mm) doors, which is the standard commercial thickness. The spindle length is what sets that dimension, so if your ML2000 mortise lock is in a thicker or thinner door, this assembly is the wrong part and you need the spindle sized for that thickness.
2) Is the Corbin Russwin 670F72 the whole mortise lock or just the outside lever?
It's trim only, not a lockset. The 670F72 is the outside lever and spindle assembly for an ML2000 Series mortise lock: the cast NS design lever plus the spindle that drives the lock case. The ML2000 lock body, cylinder, strike and inside trim are separate. Buy this when you're replacing a broken or worn outside lever on a mortise lock that's already hung in the door.
3) Do I have to order the 670F72 lever handed left or right?
No. Hand direction on the 670F72 is field reversible, so one part covers both left and right hand openings. On the ML2000 series the latchbolt is quick reversible as well, meaning the handing can be changed without taking the lock case apart. For a property manager stocking spares across a building, that means one lever part number covers every door regardless of swing.
4) What backset do I need in the door for a Corbin Russwin ML2000 mortise lock?
The ML2000 mortise lock runs a 2-3/4 inch (70mm) backset, so the lever hub on the 670F72 lands 2-3/4 inches from the door edge. If your existing mortise pocket was cut for a different backset, the lever spindle won't line up with the hub and you'd be re-prepping the door. Cross-bore spacing on the same trim is 3-5/8 inches (92mm) center to center from lever to cylinder.
5) Is the Corbin Russwin ML2000 mortise lock ANSI Grade 1 and fire rated?
Grade 1 under ANSI/BHMA A156.13 Series 1000, operational and security, and UL/cUL listed to UL10C positive pressure for 3-hour fire doors up to 4 ft x 10 ft single or 8 ft x 10 ft pair. It also carries ADA A117.1, California State Fire Marshal, and windstorm/hurricane certification, and is cycle verified to 14.5 million cycles. For an institutional spec that calls for Grade 1 lever trim on a rated corridor door, this meets it.
6) Will this lever work on a corridor or dormitory function mortise lock?
Yes. The 670F72 is set up for Corridor/Dormitory function ML2000 locks, where the outside lever is locked and unlocked by key and the inside lever always retracts the latch for free egress. Because the ML2054 body is multi-function (12 functions off one lock case), what governs is that your lock is an ML2000 mortise using the same cast NS sectional lever trim.
7) What finishes does the Corbin Russwin 670F72 NS lever come in?
Fourteen finishes, so you can match what's already on the other doors: 605 bright brass, 606 satin brass, 611 bright bronze, 612 satin bronze, 613 satin bronze oil-rubbed, 613E dark oxidized satin bronze equivalent, 618 bright nickel, 619 satin nickel, 625 bright chrome, 626 satin chrome, 629 bright stainless, 630 satin stainless, 722 black oxidized bronze oil-rubbed, and BSP black suede powder coat. Satin chrome (626) and satin stainless (630) are the usual commercial defaults in schools and offices.
8) Will my existing strike still work if I replace the lever on my ML2000 mortise lock?
Nothing changes at the strike. The 670F72 only replaces the outside lever and spindle; the latchbolt keeps its 3/4 inch (19mm) throw, the auxiliary latch its 9/16 inch (14mm) effective throw, and the deadbolt its 1 inch (25mm) throw. The ANSI straight lip strike, 4-7/8 x 1-1/4 inches with 1-1/8 inch lip to center, stays in the frame as-is.
9) Do I need to re-key anything when I swap in a 670F72 lever?
No. The lever assembly doesn't carry the cylinder, so your keying is untouched. The cylinder stays in the trim it's mounted in, and ML2000 locks work with new or existing Corbin Russwin key systems and accept most other manufacturers' cylinders. Standard ML2000 cylinders are 6-pin brass in the L4 keyway, 0-bitted from the factory if you're ordering one to be keyed on site.
10) Can I use the 670F72 cast lever instead of replacing the whole mortise lockset?
If the lock case still works, yes, and it's the cheaper path. Levers take the abuse in corridor and dorm traffic long before the ML2000 case does, and this assembly puts a new cast NS lever and spindle on the outside of a lock that's otherwise fine. Replace the full lockset instead when the case is binding, the latch isn't retracting, or you're changing the function of the opening.
11) Does the Corbin Russwin NS lever meet ADA lever requirements?
The ML2000 series is certified to ADA A117.1, and the NS is a lever rather than a knob, so it operates without tight grasping or twisting of the wrist. That's what an accessible opening in a school, healthcare facility, or multi-family building needs on the corridor side.
12) Is the Corbin Russwin NS lever trim thru-bolted?
ML2000 trim designs are thru-bolted, which pulls the inside and outside trim together through the door for alignment and pull-off resistance. That matters on dorm and corridor doors where the lever gets leaned on. Practically, it also means you're working from both faces of the door when you fit the 670F72, not just the outside.
How fast can I get the Corbin Russwin 670F72 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 670F72 626 come with a warranty?
Absolutely. The Corbin Russwin 670F72 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 670F72 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 670F72 626 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.

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