---
product_id: 14203164
title: "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)"
brand: "prime-line"
price: "81 Lei"
currency: RON
in_stock: true
url: https://www.desertcart.ro/products/14203164-prime-line-s-4573-mailbox-lock-replacement-multipurpose-mailbox-lock
store_origin: RO
region: Romania
---

# 5-pin secure lock easy install with basic tools corrosion-resistant zinc & nickel finish 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)

**Brand:** prime-line
**Price:** 81 Lei
**Availability:** ✅ In Stock

## Summary

> 🔒 Upgrade your mailbox security with style and ease—because your mail deserves the best!

## Quick Answers

- **What is this?** 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) by prime-line
- **How much does it cost?** 81 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/14203164-prime-line-s-4573-mailbox-lock-replacement-multipurpose-mailbox-lock)

## 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

- • **Sleek Nickel Finish:** Modern, polished look that elevates your mailbox’s curb appeal while protecting your mail.
- • **Smart Security Locking:** Key stays put when unlocked, preventing accidental mailbox exposure and lost keys.
- • **Effortless Installation:** Simple setup with included cams, hex nut, and clip—get your mailbox secured in minutes.
- • **Universal Fit, Zero Hassle:** Works seamlessly with most mailbox brands—no more lock compatibility headaches.
- • **Built to Brave the Elements:** Durable diecast, brass, and steel construction with corrosion-resistant finishes for long-lasting security.

## Overview

The Prime-Line S 4573 Mailbox Lock is a versatile, durable replacement lock compatible with multiple mailbox brands. Featuring a 5-pin NA-14 keyway, corrosion-resistant zinc and nickel finishes, and a smart locking mechanism that prevents key removal when unlocked, it ensures reliable security and easy installation for your mailbox.

## Description

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)

## Features

- REPLACEMENT LOCK – This multipurpose Prime-Line replacement mailbox lock is an easy fix and can easily replace lost or broken mailbox locks. Features 5 cams and an NA-14 key
- WORKS FOR SEVERAL BRANDS – This replacement mailbox lock works with most brands of mailboxes.
- BUILT TO LAST – The mail box lock and key set is constructed of diecast, brass, steel, and stamped steel materials; the steel components come finished in a corrosion-resistant zinc-plated finish; the cylinder face comes in a nickel-plated finish
- 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.
- NOTE – This mailbox lock unlocks by turning the included keys in a in the counter-clockwise direction and has a retaining hex nut and retaining clip

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | PRIME-LINE |
| Special Feature | Key Unlock |
| Lock Type | Key Lock |
| Item dimensions L x W x H | 1.25 x 3.81 x 4.94 inches |
| Material | Brass, Nickel |
| Recommended Uses For Product | Securing mailboxes |
| Style | Modern |
| Color | Nickel |
| Number of Pieces | 1 |
| Finish Type | Nickel Finish,Nickel-plated |
| Included Components | Lock, cams and 2 keys |
| Controller Type | Hand Control |
| Shape | Round |
| Item Weight | 0.24 Pounds |
| Control Method | Touch |
| UPC | 049793245731 |
| Model Name | Mailbox Lock |
| Global Trade Identification Number | 00049793245731 |
| Manufacturer | Prime-Line Products |
| Part Number | S 4573 |
| Item Weight | 3.84 ounces |
| Product Dimensions | 1.25 x 3.81 x 4.94 inches |
| Item model number | S 4573 |
| Is Discontinued By Manufacturer | No |
| Size | 1 Pack |
| Finish | Nickel Finish,Nickel-plated |
| Pattern | Lock |
| Item Package Quantity | 1 |
| Special Features | Key Unlock |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | Warranty |

## Product Details

- **Brand:** PRIME-LINE
- **Special Feature:** Key Unlock
- **Lock Type:** Key Lock
- **Item dimensions L x W x H:** 1.25 x 3.81 x 4.94 inches
- **Material:** Brass, Nickel

## Images

![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) - Image 1](https://m.media-amazon.com/images/I/51aGDpt4rOL.jpg)

## Available Options

This product comes in different **Pattern Name** options.

## 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.ro/products/14203164-prime-line-s-4573-mailbox-lock-replacement-multipurpose-mailbox-lock](https://www.desertcart.ro/products/14203164-prime-line-s-4573-mailbox-lock-replacement-multipurpose-mailbox-lock)

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-15*