---
product_id: 337077728
title: "Prime-Line S 4573 Replace Damaged or Missing Mailbox Locks, 90 Degree Rotation, Opens Counter-Clockwise, National Keyway, Nickel Finish, Nickle"
brand: "prime-line"
price: "1033 DH"
currency: MAD
in_stock: true
url: https://www.desertcart.ma/products/337077728-prime-line-s-4573-replace-damaged-or-missing-mailbox-locks
store_origin: MA
region: Morocco
---

# 5-pin National Keyway security 90° counter-clockwise rotation Complete DIY install kit Prime-Line S 4573 Replace Damaged or Missing Mailbox Locks, 90 Degree Rotation, Opens Counter-Clockwise, National Keyway, Nickel Finish, Nickle

**Brand:** prime-line
**Price:** 1033 DH
**Availability:** ✅ In Stock

## Summary

> 🔒 Upgrade your mailbox security with style and ease!

## Quick Answers

- **What is this?** Prime-Line S 4573 Replace Damaged or Missing Mailbox Locks, 90 Degree Rotation, Opens Counter-Clockwise, National Keyway, Nickel Finish, Nickle by prime-line
- **How much does it cost?** 1033 DH with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ma](https://www.desertcart.ma/products/337077728-prime-line-s-4573-replace-damaged-or-missing-mailbox-locks)

## Best For

- prime-line enthusiasts

## Why This Product

- Trusted prime-line brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Durable Nickel Finish:** Corrosion-resistant, modern nickel plating keeps your lock looking sharp.
- • **DIY-Ready Installation:** All parts included for a fast, weekend upgrade without the fuss.
- • **Effortless 90° Rotation:** Smooth counter-clockwise operation for quick, reliable access.
- • **Universal Fit, Zero Hassle:** Replaces multiple major brands—American, Florence, Miami-Carey & more.
- • **Secure Your Mail Like a Pro:** 5-pin diecast lock with brass pins ensures top-tier mailbox protection.

## Overview

The Prime-Line S 4573 mailbox lock is a durable, easy-to-install replacement featuring a 5-pin National Keyway cylinder, 90-degree counter-clockwise rotation, and a corrosion-resistant nickel finish. Compatible with multiple major mailbox brands, it includes all necessary hardware for a seamless DIY upgrade that enhances both security and aesthetics.

## Description

The Prime-Line S 4573 Diecast 5 Pin National Keyway Mailbox Lock and Key Set makes it easy to secure your mail. It is designed for use with most mailboxes. The mailbox key set comes complete with a 5 pin mailbox lock, 5 cams, and 2 keys. These multi-cam assortments eliminate the need for individual locks. The mailbox key lock set is constructed of diecast, brass, steel, and stamped steel materials. It features a spring steel locking clip and hex securing nut. The steel components come finished in a corrosion-resistant zinc-plated finish. The cylinder face comes in a nickel-plated finish. The lock is easy to install with a few simple tools. Please refer to the line art drawing for dimensions and compare with your needs before purchasing.

## Features

- REPLACEMENT PART – Use this mailbox lock to quickly and easily replace damaged or missing mailbox locks. It has 90-degree rotation and opens counter-clockwise.
- INCLUDES – This mailbox lock comes with a spring steel locking clip, a threaded body and a nut for optional cam attachment.
- REPLACES – This mailbox lock can replace a variety of original manufacturer’s locks, including American, Florence, Miami- Carey, Bommer, and Auth. It is 9/32” long with 1-3/32” bolt throw, 5/16” locking depth and 15/16” reach.
- EASY INSTALLATION – Installation is quick and easy and all parts are included! It makes a great weekend DIY project.
- DURABLE, STRONG CONSTRUCTION – With a diecast cylinder construction, brass pins and nickel plated face, this mailbox lock is strong and built to last.
- Review the bullets above and compare with your lock before purchasing.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Prime-Line |
| Special Feature | Key Unlock |
| Lock Type | Key Lock |
| Item dimensions L x W x H | 32 x 97 x 125 Millimeters |
| Material | Brass, Nickel |
| Recommended Uses For Product | security |
| Style | Modern |
| Colour | Nickel |
| Number of Pieces | 1 |
| Finish Type | Nickel |
| Included Components | Prime-Line S 4573 Mailbox Lock – Replace Damaged or Missing Mailbox Locks, 90 Degree Rotation, Opens Counter-Clockwise, National Keyway, Nickel Finish |
| Controller Type | Key Control |
| Shape | Round |
| Item Weight | 0.24 Pounds |
| Connectivity Protocol | Wi-Fi |
| UPC | 049793245731 |
| Model Name | Prime-Line S 4573 Mailbox Lock – Replace Damaged or Missing Mailbox Locks, 90 Degree Rotation, Opens Counter-Clockwise, National Keyway, Nickel Finish |
| Global Trade Identification Number | 00049793245731 |
| Manufacturer | Prime-Line Products |
| Item model number | S 4573 |
| Product Dimensions | 3.18 x 9.69 x 12.54 cm; 108.86 g |
| ASIN | B003OSRLDY |

## Product Details

- **Brand:** Prime-Line
- **Special Feature:** Key Unlock
- **Lock Type:** Key Lock
- **Item dimensions L x W x H:** 32 x 97 x 125 Millimeters
- **Material:** Brass, Nickel

## Images

![Prime-Line S 4573 Replace Damaged or Missing Mailbox Locks, 90 Degree Rotation, Opens Counter-Clockwise, National Keyway, Nickel Finish, Nickle - Image 1](https://m.media-amazon.com/images/I/51aGDpt4rOL.jpg)
![Prime-Line S 4573 Replace Damaged or Missing Mailbox Locks, 90 Degree Rotation, Opens Counter-Clockwise, National Keyway, Nickel Finish, Nickle - Image 2](https://m.media-amazon.com/images/I/614oRH8DBbL.jpg)

## Questions & Answers

**Q: Will this replace usps-l-1172c?**
A: It is not an exact replace but is an alternative mailbox lock.

**Q: Are there blank keys available for this lock?**
A: The lock takes a National keyway blank NA-14.

**Q: What is the diameter of the lock cylinder? most other cylinders are 5/8" which are too big for the mailbox hole...?**
A: This item is 3/4".

**Q: how many keys are included?**
A: Two keys are included.

## Frequently Bought Together

- Prime-Line S 4573 Mailbox Lock – Replacement, Multipurpose Mailbox Lock for Several Brands – NA-14 Keyway, Opens Counter-Clockwise with 90º Rotation, Nickel Finish (1 Set)
- Prime-Line S 4140 Mailbox Lock – Replacement, Multipurpose Mailbox Lock for Several Brands – ILCO 1003M Keyway, Opens Counter-Clockwise with 90º Rotation, Nickel Finish (1 Set)
- Prime-Line MP4945 Mail Box Lock, 5-Cam, 5-Pin, 13/16 In. Threaded, Counter-Clockwise (Single Pack)

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**Shop now:** [https://www.desertcart.ma/products/337077728-prime-line-s-4573-replace-damaged-or-missing-mailbox-locks](https://www.desertcart.ma/products/337077728-prime-line-s-4573-replace-damaged-or-missing-mailbox-locks)

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*Product available on Desertcart Morocco*
*Store origin: MA*
*Last updated: 2026-03-05*