Adams Rite - 4550R-01 - MS Deadlock Lever for MS1850A and MS1850S - 121 (Dark Bronze Ritecoat)
Pickup available at MIAMI MAIN WAREHOUSE
Usually ready in 1 hour
Delivery and Shipping
Delivery and Shipping
All orders are shipped between 24 hours or less Monday through Friday from 9:00 am to 6:00pm. Orders placed after 5 p.m. EST will be shipped next business day.
Learn more
Return Policy
Return Policy
At Locksmith Keyless, we prioritize your satisfaction and offer a simple return process. Returns are accepted within 30 days of purchase for unused items in original packaging. Certain items, including OEM keys, Lishi tools, and customized orders, are non-returnable. A restocking fee of up to 30% may apply. For a full list of non-returnable items and more details, please refer to our complete return policy.
For damaged, missing, or incorrect items, please contact us within 48 hours of delivery. All returns require an RMA number. Shipping costs for returns are the responsibility of the customer.
View Full Return Policy
Description
Description
Adams Rite - 4550R-01 - MS Deadlock Lever for MS1850A and MS1850S - 121 (Dark Bronze Ritecoat)
The 4550R-01-121 MS Deadlock Lever works with the MS Deadlock with approximately three pounds of downward force on a 3" lever whereas the spring-loaded lever relocks the device with an upward motion. The indicator is self-driven by lock bolt itself which indicates lock status. It can be installed in place of existing key cylinder or cylinder type thumbturn on inside of door. Its clutching action prevents damage to internal components. The 4550 Deadlock Lever is not found compatible with 7/8" backset locks.
Recommended for door thickness from 1-3/4" to 2" (inches)
Features:
- Clear Aluminum Finish
- Indicator is self-driven by lock bolt itself
- Handed operation
- RH or RHR handing operation is easily reconfigured to accommodate either door swing
- Available in aluminum casting housing of approximately 1-3/8" wide x 7-1/2" long x 1" deep
- Compatibility with MS1837, MS1850S, MS1850SN, MS1861, MS1950 Deadlocks and 1870 Series cylinder-operated Flushbolts
- For door thickness from 1-3/4" to 2"
- Words "LOCKED" in red letters or "OPEN" in black letters appear on white background when lock is thrown or retracted
- 3" long aluminum lever with end-return design offers comfortable grip to lock or unlock the device
- Lever housing projects 11/16" forward of cylinder backset centerline
- 3 year limited manufacturer's warranty is included
Individually boxed with installation instructions, mounting screws and drive pins for both single point and threshold bolt-equipped locks.
Product Specifications:
Vendor | Assa Abloy |
Manufacturer | Adams Rite |
SKU | 4550R-01-121 |
UID | ADA1004550R01121 |
Installation | Commercial |
Origin | USA |
Unit of Measure | Each |
Base Material | VARIES |
BAA Qualified | Yes |
Limited Warranty | 5 Years |
Technical Specifications:
Lever/Knob Design | Flat Lever w/Return |
Rose/Escutcheon Design | Rectangle with Indicator |
For Use With | MS1850S, MS1950, MS1837, etc. |
Handing | RH |
Door Thickness | 1-3/4" - 2" |
Screws | Machine |
Product Type | Aluminum Door Trim |
Installation Instructions:
Reviews
Reviews
- Highest to Lowest
- Newest to Oldest
- Favorite Reviews
- All Ratings
- 5 ★ Reviews
- 4 ★ Reviews
- 3 ★ Reviews
- 2 ★ Reviews
- 1 ★ Reviews


Prompt response to my questions.i appreciate the people here they go above and beyond to help me with Any product questions I have.they give honest responses not trying to sell sell sell..they listen and give all my options.so i can choose what's best forme.
Customer Service
Q&A
Q&A
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.