The MS-1891-3026-628 from Adams Rite is a Lockset for 1-1/8″ Backset in Clear. The MS-1891-3026-628 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-1891-3026-628 Lockset Features
- Clear Anodized Finish: Provides a sleek and modern look while enhancing durability against wear and tear.
- Cylinder Backset: 1-1/8″, ensuring compatibility with a variety of door types.
- Stainless Steel Case: Made with corrosion-resistant plating, measuring 1″ x 7-3/8″, offering long-lasting strength and reliability.
- Standard Stile Lip Length: Fits most standard door configurations for easier installation.
- Radius Faceplate: Measures 1″ x 6-7/8″ for a neat appearance and secure fit.
- Handed Operation: Available in RH or LHR options for versatile door handling.
- Cylinder Not Included: Allows for customization with any standard 1-5/32″ diameter mortise cylinder with MS cam.
- Grade 1 Strength: Meets high-security standards, ensuring enhanced protection for your premises.
- Latchbolt Construction: Features an eight ply laminated stainless steel design measuring 5/8″ x 1-3/8″ with a 13/16″ throw for reliable locking.
- Armored Strike: Constructed with satin stainless steel trim plate, steel mounting plate, and dust box for added security and durability.
Adams Rite MS-1891-3026-628 Lockset Specifications
| Feature | Details |
|---|---|
| Finish | Clear Anodized |
| Cylinder Backset | 1-1/8″ |
| 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″ |
| Handed | RH or LHR |
| Cylinder Compatibility | Any standard 1-5/32″ diameter mortise cylinder with MS cam |
| Strength Rating | Grade 1 |
| Latchbolt Construction | Eight ply laminated stainless steel, 5/8″ x 1-3/8″, 13/16″ throw |
| Strike Plate | Satin Stainless Steel Trim Plate with Steel Mounting Plate and Dust Box |



















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