Adams Rite 4920AN-56-602-628 Heavy Duty Deadlatch (ANSI Size) with Flat Faceplate in Clear Anodized
- Clear Anodized Finish
- RH or LHR - 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-56-602-628 from Adams Rite is a Heavy Duty Deadlatch (ANSI Size) with Flat Faceplate in Clear Anodized. The 4920AN-56-602-628 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.
Features
- Clear Anodized Finish: Provides corrosion resistance and a sleek appearance that complements various door styles.
- RH or LHR Handing: Operation is easily reversible using only a screwdriver, accommodating different door configurations.
- Cylinder Backset: 2-3/4" backset easily fits standard door preparations for versatility in installation.
- Corrosion-Resistant Steel Case: Measures 7/8" x 5-13/16" in size, ensuring durability and longevity.
- 1-3/4" Minimum Door Thickness: Suitable for most commercial door applications, ensuring a secure fit.
- Grade 1 Standard: Meets the highest level of security assurance for commercial applications.
- Compatible Cylinder: Uses any standard 1-5/32" mortise cylinder with MS dimensioned cam for simple replacement.
- Adjustable Armored Flat Faceplate: Measures 1-1/4" x 8" and can be adjusted in the field for right or left beveled edge doors.
- Solid Brass Latchbolt: Features a 5/8" x 1" x 5/8" throw for secure locking capabilities.
- Stainless Steel Auxiliary Latchpin: Prevents unauthorized entry techniques, enhancing security.
- Included Strike: Comes with the 4506 Strike for added convenience and compatibility.
- ANSI Preparation Specifications: 4506-02 Strike furnished, specifically designed for flat jamb installations.
Adams Rite 4920AN-56-602-628 Detailed Specifications
| Feature | Detail |
| Product Type | Heavy Duty Deadlatch (ANSI Size) |
| Finish | Clear Anodized |
| Handing | RH or LHR (reversible) |
| Cylinder Backset | 2-3/4" |
| Case Material | Steel with corrosion-resistant plating |
| Case Dimensions | 7/8" x 5-13/16" (depth varies by bracket) |
| Minimum Door Thickness | 1-3/4" |
| Grade | 1 Standard |
| Compatible Cylinder | 1-5/32" mortise cylinder with MS cam |
| Faceplate Dimensions | 1-1/4" x 8" |
| Latchbolt Material | Solid Brass |
| Latchbolt Throw | 5/8" x 1" x 5/8" |
| Auxiliary Latchpin Material | Stainless Steel |
| Strike Included | 4506 Strike |
| ANSI Preparation Strike | 4506-02 for flat jamb |
Tools & Calculators


