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Corbin Russwin ML2073 RSM Classroom Security Mortise Lockset
Lock Operation Detailed
- Latchbolt by grip from either side unless outside grip is locked by projection of deadbolt.
- Deadbolt thrown or retracted by key .
- Inside grip simultaneously retracts latchbolt and deadbolt; outside grip remains locked.
- Key unlocks outside grip; outside grip remains locked unless unlocked by key.
- Auxiliary latch deadlocks latchbolt.
- Note: Indicator shows deadbolt position only.
The Corbin Russwin ML2073 RSM is a heavy-duty Grade 1 Classroom Security mortise lockset on Regis Cast Lever x M Escutcheon (RSM) trim. It is built on the ML2000 Series platform and is certified to A156.13 Series 1000, Operational and Security Grade 1.
Classroom Security Function -- What It Means
The Classroom Security function locks the outside grip by projection of the deadbolt. Latchbolt by grip from either side unless the outside grip is locked that way. Deadbolt thrown or retracted by key. The inside grip simultaneously retracts latchbolt and deadbolt; the outside grip remains locked. A key unlocks the outside grip; the outside grip remains locked unless unlocked by key. An auxiliary latch deadlocks the latchbolt. An indicator, when specified, shows deadbolt position only.
Institutional Grade Features & Benefits
- Outside stays locked: the outside grip remains locked unless a key unlocks it. It does not stay unlocked after the key is removed.
- Deadbolt indicator only: when an indicator is specified, it shows deadbolt position only.
- Inside retracts both: the inside grip retracts the latchbolt and the deadbolt together.
- Deadbolt locks the outside: projecting the deadbolt locks the outside grip.
- Outside stays locked: retracting the deadbolt from inside does not unlock the outside grip.
- Grade 1 certified: Certified A156.13 Series 1000, Operational and Security Grade 1.
- Field handing: Handed; quick reversible. The lockset can be re-handed without disassembling the lock case; see page 87.
- Fire listing: UL/cUL-UL10C Positive Pressure
- Warranty: Ten-year mechanical warranty.
Typical Applications
The ML2000 Series is a Grade 1 mortise lock designed to meet the rigors of high-traffic commercial, institutional, industrial and government applications.
- Commercial applications
- Institutional applications
- Industrial applications
- Government applications
This classroom security listing is specified on classroom openings where a key throws the deadbolt and the outside stays locked in those settings.
Technical Details
| Feature | Details |
|---|---|
| Model Number | ML2073 RSM |
| Function | Classroom Security |
| Series | Corbin Russwin ML2000 |
| Certification | Certified A156.13 Series 1000, Operational and Security Grade 1. |
| Accessibility | Meets A117.1 Accessibility Code. |
| Fire Listing | UL/cUL-UL10C Positive Pressure |
| Handing | Handed; quick reversible. The lockset can be re-handed without disassembling the lock case; see page 87. |
| Door Thickness | 1-3/4" (44mm) standard. Optional door thicknesses available; see Quick Codes, page 81. |
| Backset | 2-3/4" (70mm). |
| Lockcase | Heavy-gauge steel, 5-7/8" (149mm) x 4" (102mm) x 15/16" (24mm). |
| Front | Heavy-gauge steel, 8" (203mm) x 1-1/4" (32mm) x -3/32" (2mm). Accommodates flat doors and doors beveled 1/8" (3mm) in 2" (51mm). |
| Armored Front | Wrought brass, bronze or stainless steel attached by machine screws to lockcase front. |
| Latchbolt | 2-piece mechanical with anti-friction insert, 5/8" (16mm) x 1" (25mm) x 3/4" (19mm) throw. |
| Auxiliary Latch | 9/16" (14mm) effective throw and 3/8" (10mm) effective auxiliary latch deadlocking. |
| Deadbolt | One-piece stainless steel, 19/32" (15mm) x 1-1/4" (32mm) x 1" (25mm) throw. |
| Strike | Wrought brass, bronze or stainless steel, ANSI straight lip standard, 4-7/8" (124mm) x 1-1/4" (32mm) x 1-1/8" (29mm) lip to center. |
| Cylinder (standard) | Brass, 6-pin, L4 keyway, 0-bitted standard. |
| Hubs | Standard knob/lever hub is steel, 5/16" (8mm) |
| Trim | Regis Cast Lever x M Escutcheon |
| Warranty | Ten-year mechanical warranty. |
| Finish with BHMA code | 626 - US26D Satin Chrome or 630 - US32D Satin Stainless or 613 - US10B Oil Rubbed Bronze or 613E - US10BE Oil Rubbed Bronze Equal or BSP - Black Suede Powder Coat or 605 - US3 Polish Brass or 606 - US4 Satin Brass or 612 - US10 Satin Bronze or 619 - US15 Satin Nickel or 625 - US26 Polish Chrome or 629 - US32 Polish Stainless or WSP - White Suede Powder Coat or 611 - US9 Bright Bronze or 618 - US14 Bright Nickel or 722 - Black Oxidized Bronze, Oil Rubbed |
| Corbin Russwin Keyways | L4 Keyway or CL6 - LFIC less Core or LC - Less Cylinder or CL7 - LFIC 7-pin Less Core or CLS6 - SFIC 6-pin Less Core or CLS7 - SFIC 7-pin Less Core |
| Brand | Corbin Russwin |
| Trim Design | RSM |
| Series | Corbin Russwin - ML2000 Series |
| Door Handing | Field Reversible |
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