Adams Rite 4920AN-55-000-313 Heavy Duty Deadlatch (ANSI Size) with Flat Faceplate in Dark Bronze Anodized
- Dark Bronze Anodized Finish
- LH or RHR - handed operation is easily reversible using only a screwdriver
- Cylinder Backset: 2-3/4"
- Case is made of steel with corrosion-resistant plating that measures 7/8" x 5-13/16" x depth (depth varies by bracket)
- 1-3/4" minimum door thickness required

The 4920AN-55-000-313 from Adams Rite is a Heavy Duty Deadlatch (ANSI Size) with Flat Faceplate in Dark Bronze Anodized. The 4920AN-55-000-313 series Deadlatch offers precise traffic control and easy installation for wood or hollow metal doors prepared for hardware according to the specifications of the American National Standards Institute (ANSI). A key-controlled bolt hold-back feature allows a door to free-swing part of the day and exit-only when the bolt is free to latch. This allows a "locked" entrance to be used as an exit by customers or visitors already in the building. For its operation turn key or operate handle to retract spring-loaded latchbolt. To hold bolt retracted, push it in and secure by reverse turn of key. It is easily interchangeable, without stile modification with any MS1850A or MS1850S Deadlock of same backset and faceplate shape. It also replaces 4520 and 4720 ANSI Deadlatches.
Adams Rite 4920AN-55-000-313 Features
- Dark Bronze Anodized Finish: Ensures durability and resists corrosion, enhancing the longevity of the product.
- Reversible Handing: LH or RHR handed operation is easily reversible using only a screwdriver for versatile installation options.
- Cylinder Backset: 2-3/4" backset fits standard installations, making it a convenient choice for various door types.
- Steel Case Construction: Made with corrosion-resistant plating, the case measures 7/8" x 5-13/16", offering robust security.
- Minimum Door Thickness: Requires a minimum of 1-3/4" door thickness for optimal performance and security.
- Grade 1 Standard: Meets high-grade performance certifications for maximum reliability and safety.
- Standard Mortise Cylinder: Uses any standard 1-5/32" mortise cylinder with MS dimensioned cam for compatibility and ease of use.
- Adjustable Armored Flat Faceplate: Measures 1-1/4" x 8" and can be adjusted on site for beveling, accommodating various door types.
- Brass Latchbolt: Features a solid brass construction with a 5/8" x 1" x 5/8" throw, providing secure latching.
- Stainless Steel Auxiliary Latchpin: Prevents unauthorized entry methods, enhancing security.
- Less Strike Included: Comes with a 4506-02 strike furnished to ANSI preparation specifications for easy installation onto flat jambs.
Adams Rite 4920AN-55-000-313 Detailed Specifications
| Finish | Dark Bronze Anodized |
| Handing | Left Hand (LH) or Right Hand Reverse (RHR) - Reversible |
| Cylinder Backset | 2-3/4" |
| Case Dimensions | 7/8" x 5-13/16" (depth varies by bracket) |
| Minimum Door Thickness | 1-3/4" |
| Grade | Grade 1 Standard |
| Mortise Cylinder Compatibility | Standard 1-5/32" with MS dimensioned cam |
| Faceplate Dimensions | 1-1/4" x 8" (adjustable) |
| Latchbolt Material | Solid Brass |
| Latchbolt Throw | 5/8" x 1" x 5/8" |
| Auxiliary Latchpin Material | Stainless Steel |
| Strike | 4506-02 included for flat jamb |
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