Free Shipping for eligible orders over $99

Discover Equipment Financing choices Learn more

Same Day shipping until 5PM EST Learn more

Adams Rite  |  SKU: ADMR-4550L-01-121

Adams Rite - 4550L-01 - MS Deadlock Lever for MS1850A and MS1850S - 121 (Dark Bronze Ritecoat)

$15300 $18360
Shipping calculated at checkout.
 More payment options
Trust Guard Security ScannedSecure transaction

Pickup available at MIAMI MAIN WAREHOUSE

Usually ready in 1 hour

Found a better price? Call for Price Match!
Shop with confidence knowing you’re getting the best deal.

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

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

Adams Rite - 4550L-01 - MS Deadlock Lever for MS1850A and MS1850S - 121 (Dark Bronze Ritecoat)

4550L Lever Handles Easily unlocks an MS®Deadlock with approximately three pounds of downward force. Lever is spring loaded to horizontal, relocks with upward motion. Indicator signals lock status. Can be installed in place of existing key cylinder or cylinder type thumbturn on inside of door. 4550 Deadlock Lever not compatible with 7/8” backset locks.

Features:
  • Housing: Aluminum casting is 1-3/8” wide x 7-1/2” long x 1” deep.
  • Lever: 3” long aluminum with end-return design offers comfortable grip to lock or unlock.
  • Indicator: Words “LOCKED” in red letters or “OPEN” in black letters appear on white background when lock is thrown or retracted. Indicator is driven by lock bolt itself.
  • Stop Clearance: Lever housing projects 11/16” forward of cylinder backset centerline. Depending on height of door stop and width of door/jamb gap, it may be necessary to modify the stop to clear the housing. For fin type stops, this is easily accomplished. Hollow stops may preclude use of lever.
  • Compatible Deadlocks: Any MS® pivoted bolt deadlock including “Schoolhouse” versions can be fitted with the 4550 including MS1850S, MS1950, MS1837, etc. Derivative units such as 1870, 1870HM, or 1877 flushbolts (bolt into threshold) are also operable by the 4550 lever. Not compatible with MS+1890 Deadlock/Latch or with 7/8” backset locks.
  • Options: Available in three finishes to match anodized aluminum finishes. Can be ordered for left or right hand door, but is easily reconfigured in the field to accommodate either door swing.
  • Standard Package: Individually boxed with installation instructions, mounting screws, and drive pins for both single point and threshold bolt-equipped locks. Shipping weight: 1 lb.
Product Speifiations:
Vendor Assa Abloy
Manufacturer Adams Rite
SKU 4550L-01-121
UID ADA1004550L01121
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 LH
Door Thickness 1-3/4" - 2"
Screws Machine
Product Type Aluminum Door Trim
Installation Instructions:

Reviews

We're currently collecting product reviews for this item. In the meantime, here are some company reviews from our past customers sharing their overall shopping experience.

  • 5
    7302 (83%)
  • 4
    939 (11%)
  • 3
    288 (3%)
  • 2
    62 (1%)
  • 1
    191 (2%)
94% of customers rate this company 4- or 5-stars
Newest to Oldest
  • Highest to Lowest
  • Newest to Oldest
  • Favorite Reviews
All Ratings
  • All Ratings
  • 5 ★ Reviews
  • 4 ★ Reviews
  • 3 ★ Reviews
  • 2 ★ Reviews
  • 1 ★ Reviews
Betty M. Verified Customer   
03-16-25

my delivery was sent to the wrong address

Delivery
1 / 5
Price
3 / 5
T Verified Customer   
03-14-25

Got wrong key, no solution ever reached.

Customer Service
1 / 5
Delivery
5 / 5
Price
3 / 5
Lance P. Verified Customer   
03-14-25

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
5 / 5
Delivery
5 / 5
Price
5 / 5

Q&A

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Venmo
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

More Details
  • Trust Guard - Security Scanned
    Website is Security Scanned Security Scan Passed:
    Scan Frequency:
  • Trust Guard - Malware Scanned
    No Malware Detected Malware Scan Passed:
    Scan Frequency:
  • Trust Guard - SSL Scanned
    Active SSL Certificate Encrypted By:
    Expiration Date:
Trust Guard Security Scanned
More Details
  • Trust Guard - Security Scanned
    Website is Security Scanned Security Scan Passed:
    Scan Frequency:
  • Trust Guard - Malware Scanned
    No Malware Detected Malware Scan Passed:
    Scan Frequency:
  • Trust Guard - SSL Scanned
    Active SSL Certificate Encrypted By:
    Expiration Date: