The MS-1891W2025-313 from Adams Rite is a lockset for 31/32″ backset in dark bronze anodized. The MS+1891 series Deadlock/Deadlatch provides a maximum security deadlock for after hour and traffic control convenience during business hours. It operates in such a way that the 360 degree turn of key or thumb turn throws or retracts the hook-shaped deadlock and then 120 degree further turn retracts latch bolt as well. Cylinder may accept any standard 1-5/32″ diameter mortise cylinder or thumb turn from either or both sides. Handle retracts spring-loaded latchbolt only.
Features
- Dark Bronze Anodized Finish: Provides a sleek and modern look while enhancing durability against the elements.
- Cylinder Backset: 31/32″ ensures compatibility with various door types.
- Stainless Steel Case: Made with corrosion-resistant plating, measuring 1″ x 7-3/8″, ensuring long-lasting performance.
- Standard Stile Lip Length: Designed for easy installation and compatibility with standard doors.
- Radius Faceplate with Weatherstrip: Measures 1″ x 6-7/8″, providing enhanced weather resistance and a polished finish.
- Handed Operation: Available in LH or RHR configurations to suit different door setups.
- Cylinder Not Included: Allows for customization with any standard 1-5/32″ diameter mortise cylinder with MS cam.
- Grade 1 Strength: Offers maximum security, suitable for commercial and high-traffic environments.
- Latchbolt Construction: Made of eight ply laminated stainless steel measuring 5/8″ x 1-3/8″ with a 13/16″ throw for robust performance.
- Armored Strike: Features a satin stainless steel trim plate with a steel mounting plate and dust box for added security.
Adams Rite MS-1891W2025-313 Detailed Specifications
| Feature | Detail |
| Finish | Dark Bronze Anodized |
| Cylinder Backset | 31/32″ |
| Case Material | Stainless Steel with Corrosion-Resistant Plating |
| Case Dimensions | 1″ x 7-3/8″ (depth varies by backset) |
| Stile Lip Length | Standard |
| Faceplate Dimensions | 1″ x 6-7/8″ with Weatherstrip |
| Handed Operation | LH or RHR (Left Hand or Right Hand Reverse) |
| Cylinder Compatibility | Any standard 1-5/32″ diameter mortise cylinder with MS cam |
| Strength Grade | Grade 1 |
| Latchbolt Material | Eight Ply Laminated Stainless Steel |
| Latchbolt Dimensions | 5/8″ x 1-3/8″ with 13/16″ throw |
| Strike Material | Satin Stainless Steel Trim Plate with Steel Mounting Plate and Dust Box |



















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