The MS-1891W2015-628 from Adams Rite is a lockset for 31/32″ backset in clear 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
- Clear Anodized finish: Provides a sleek, modern look while enhancing corrosion resistance.
- Cylinder Backset: 31/32″ for compatibility with a variety of door configurations.
- Durable construction: Made of stainless steel with corrosion-resistant plating, measuring 1″ x 7-3/8″ (depth varies by backset), ensuring longevity.
- Standard Jamb Lip length: Simplifies installation and enhances fit within standard door frames.
- Radius faceplate with weatherstrip: Measures 1″ x 6-7/8″, providing added weather protection and aesthetic appeal.
- Handed operation – LH or RHR: Flexible installation options for left-hand or right-hand reverse door configurations.
- Cylinder not included: Allows for customization with any standard 1-5/32″ diameter mortise cylinder.
- MS+1891W Deadlocks compatibility: Operable by any standard 1-5/32″ diameter mortise cylinder with MS cam, offering versatility.
- Grade 1 strength: Meets high durability and security standards for commercial applications.
- Latchbolt construction: Eight ply laminated stainless steel measuring 5/8″ x 1-3/8″ with 13/16″ throw for enhanced security.
- Armored Strike: Made of satin stainless steel trim plate with steel mounting plate and dust box for added strength.
Adams Rite MS-1891W2015-628 Detailed Specifications
| Feature | Details |
| Finish | Clear Anodized |
| Cylinder Backset | 31/32″ |
| Case Material | Stainless Steel with Corrosion-Resistant Plating |
| Case Dimensions | 1″ x 7-3/8″ (depth varies by backset) |
| Jamb Lip Length | Standard |
| Faceplate Dimensions | 1″ x 6-7/8″ |
| Handed Operation | Left Hand or Right Hand Reverse |
| Cylinder Inclusion | Cylinder not included |
| Deadlock Compatibility | Standard 1-5/32″ diameter mortise cylinder with MS cam |
| Strength Rating | 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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