The MS-1891-3015-313 from Adams Rite is a Lockset for 1-1/8″ Backset in Dark Bronze. The MS-1891-3015-313 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: Enhances durability and aesthetic appeal, making it suitable for various architectural styles.
- Cylinder Backset: 1-1/8″ for precise fitting and installation compatibility.
- Corrosion-Resistant Stainless Steel Case: Measures 1″ x 7-3/8″ ensuring longevity and reliability under various environmental conditions.
- Standard Jamb Lip Length: Ensures a uniform installation across different door types.
- Radius Faceplate: Measures 1″ x 6-7/8″ providing a sleek and modern look.
- Handed Operation: Available in LH or RHR (Left Hand or Right Hand Reverse) for customized installation.
- Cylinder Not Included: Allows for user flexibility in choosing a compatible cylinder.
- Operable with Standard Mortise Cylinder: Compatible with any 1-5/32″ diameter mortise cylinder with MS cam for ease of use.
- Grade 1 Strength: Meets high-security standards making it ideal for commercial applications.
- Durable Latchbolt: Made of eight ply laminated stainless steel measuring 5/8″ x 1-3/8″ with a robust 13/16″ throw.
- Armored Strike: Constructed with satin stainless steel trim plate and steel mounting plate for added security.
Adams Rite MS-1891-3015-313 Lockset Specifications
| Feature | Details |
| Finish | Dark Bronze 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) |
| Faceplate Type | Radius |
| Faceplate Dimensions | 1″ x 6-7/8″ |
| Operation Type | Handed (LH or RHR) |
| Included Components | Cylinder not included |
| Compatibility | Standard 1-5/32″ diameter mortise cylinder with MS cam |
| Security 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 with Steel Mounting Plate and Dust Box |



















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