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Replacement lock – this multipurpose replacement mailbox lock is an easy fix and can easily replace lost or broken mailbox locks.

Durable, brass pins and nickel plated face, strong constRUCTION – With a diecast cylinder construction, this mailbox lock is strong and built to last. It is 9/32” long with 1-3/32” bolt throw, including American, 5/16” locking depth and 15/16” reach.



1. Salsbury Industries
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Salsbury Industries 3390 Standard Replacement Lock for F Series Cluster Box Unit Door with Three Keys
#adSalsbury Industries #ad - Stainless Steel. Corresponding key blanks box of 50 keys are available. Available for commercial mailboxes and residential mailboxes. Model number: 3390 .More information #ad
Brand | Salsbury Industries #ad |
Manufacturer | Salsbury Industries #ad |
Height | 1 Inches |
Length | 1 Inches |
Weight | 0.25 Pounds |
Width | 2 Inches |
Part Number | 3390 |
Model | 3390 |
More information #ad
2. PRIME-LINE
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Opens Counter-Clockwise with 90º Rotation, ILCO 1003M Keyway, Prime-Line S 4140 Mailbox Lock – Replacement, Multipurpose Mailbox Lock for Several Brands – Nickel Finish
#adPRIME-LINE #ad - Works for several brands – this replacement mailbox lock works for several brands of mailboxes, including: American Device, Auth-Florence, Bommer, and Miami Carey. Durable, this replacement lock is strong and durable, strong construction – made of diecast with a nickel-plated face, sure to last the test of time.Replacement lock – this multipurpose replacement mailbox lock is an easy fix and can easily replace lost or broken mailbox locks.
More information #ad
Includes – replacement lock kit includes a total of 5 zinc-plated steel cams, brass pins, a spring steel locking clip and 2 keys. This is a 5-pin tumbler lock. Locking security feature – this lock has a security feature that prevents the key from being removed when in the unlocked position, which prevents forgetting the key, and ensuring the mailbox is locked every time it’s used.Brand | PRIME-LINE #ad |
Manufacturer | Prime-Line Products #ad |
Height | 4.88 Inches |
Length | 1.25 Inches |
Width | 3.81 Inches |
Part Number | S 4140 |
Model | S 4140 |
More information #ad
3. PRIME-LINE
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Prime-Line Products Prime-Line S 4573 Replace Damaged or Missing Mailbox Locks, Nickle, National Keyway, Opens Counter-Clockwise, Nickel Finish, 90 Degree Rotation
#adPRIME-LINE #ad - Replacement part – use this mailbox lock to quickly and easily replace damaged or missing mailbox locks. Replaces – this mailbox lock can replace a variety of original manufacturer’s locks, bommer, Miami- Carey, Florence, and Auth.Durable, brass pins and nickel plated face, strong constRUCTION – With a diecast cylinder construction, this mailbox lock is strong and built to last. It is 9/32” long with 1-3/32” bolt throw, including American, 5/16” locking depth and 15/16” reach.
More information #ad
Easy installation – installation is quick and easy and all parts are included! It makes a great weekend DIY project. Includes – this mailbox lock comes with a spring steel locking clip, a threaded body and a nut for optional cam attachment. It has 90-degree rotation and opens counter-clockwise.Brand | PRIME-LINE #ad |
Manufacturer | Prime-Line Products #ad |
Height | 4.94 Inches |
Length | 1.25 Inches |
Width | 3.81 Inches |
Part Number | S 4573 |
Model | S 4573 |
More information #ad
4. National
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Pedistal Appartment/Town House National Mailbox Lock C9200 Turns CCW
#adNational #ad - Key turn open unlock is counter clockwise. The only postal mailbox lock to meet and exceed United States Postal Service specification. C9200 operates counter clockwise. Comes with 3 keys.More information #ad
Brand | National #ad |
Manufacturer | CompX / National #ad |
Part Number | C9200- USPS-L-1172C |
Model | C9200 - USPS-L-1172C |
More information #ad
5. PRIME-LINE
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Prime-Line Products S 4531 National Keyway Mail Box Lock with 9 Cams and 5 Pin
#adPRIME-LINE #ad - Spring steel locking clip. Brass constructed pins. Can eliminate stocking of individual locks. Die cast construction. Nickel plated face.More information #ad
Brand | PRIME-LINE #ad |
Manufacturer | Prime-Line Products #ad |
Height | 4.88 Inches |
Length | 1.25 Inches |
Width | 3.75 Inches |
Part Number | S 4531 |
Model | S 4531 |
More information #ad
6. PRIME-LINE
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Nickel, Prime-Line Products S 4300 Mail Box Lock Cutler-Fed with Dust Cover
#adPRIME-LINE #ad - For exterior applications. 5 pin Tumbler. 1-9/16 in long cam. Keyway features spring loaded dust cover. Fits cutler Federal Exterior Residential gang boxes.More information #ad
Brand | PRIME-LINE #ad |
Manufacturer | Prime-Line Products #ad |
Height | 4.88 Inches |
Length | 1.25 Inches |
Width | 3.75 Inches |
Part Number | S 4300 |
Model | S 4300 |
More information #ad