Adams Rite MS-1891-2025-628 Lockset for 31/32" Backset in Clear
SKU
MS-1891-2025-628
Model No
MS-1891-2025-628
$168.60
Product Highlights
- Clear Anodized finish
- Cylinder Backset: 31/32"
- Case is made of stainless steel with corrosion-resistant plating that measures 1" x 7-3/8" x depth (depth varies by backset)
- Standard Stile Lip length
- Radius faceplate measures 1" x 6-7/8"

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The MS-1891-2025-628 from Adams Rite is a Lockset for 31/32" Backset in Clear. The MS-1891-2025-628 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.
Adams Rite MS-1891-2025-628 Lockset Features
- Clear Anodized finish: Provides a sleek and modern appearance that resists wear and tears for long-lasting aesthetics.
- Cylinder Backset: 31/32" designed specifically for compatibility with various door setups.
- Stainless Steel Construction: The case is made of durable stainless steel with corrosion-resistant plating ensuring long-term durability.
- Standard Stile Lip length: Ensures compatibility with a wide range of door styles, making installation versatile.
- Radius faceplate: Measures 1" x 6-7/8", designed for a clean look and easy installation.
- Handed operation: Available in Left Hand (LH) or Right Hand Reverse (RHR) for ease of use and flexibility based on door orientation.
- Cylinder not included: Offers the flexibility to choose a compatible cylinder that meets specific requirements.
- MS+1891 Deadlocks: Operable by any standard 1-5/32" diameter mortise cylinder with MS cam, adding compatibility to your options.
- Grade 1 strength: Certified for high-security environments, ensuring maximum protection against unauthorized access.
- Latchbolt construction: Made of eight ply laminated stainless steel, with a robust 5/8" x 1-3/8" measurement and 13/16" throw for enhanced security.
- Armored Strike: Features a satin stainless steel trim plate with a strong steel mounting plate and dust box for durability and resilience.
Adams Rite MS-1891-2025-628 Lockset 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) |
| Stile Lip Length | Standard |
| Radius Faceplate Dimensions | 1" x 6-7/8" |
| Operation Handing | LH or RHR |
| Cylinder Inclusion | Cylinder not included |
| Compatibility | Operable by standard 1-5/32" diameter mortise cylinder with MS cam |
| Strength Rating | Grade 1 |
| Latchbolt Construction | 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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