---
product_id: 492388392
title: "Milton S-715-4 1/4\" FNPT M Style Coupler - Pack of 4"
brand: "milton"
price: "R766"
currency: ZAR
in_stock: true
reviews_count: 5
category: "Milton"
url: https://www.desertcart.co.za/products/492388392-milton-s-715-4-1-4-fnpt-m-style-coupler
store_origin: ZA
region: South Africa
---

# 40 SCFM airflow capacity 250°F max temperature rating 1/4" FNPT precision fit Milton S-715-4 1/4" FNPT M Style Coupler - Pack of 4

**Brand:** milton
**Price:** R766
**Availability:** ✅ In Stock

## Summary

> 🔧 Elevate your air tool game with Milton’s pro-grade quick couplers—because every connection counts!

## Quick Answers

- **What is this?** Milton S-715-4 1/4" FNPT M Style Coupler - Pack of 4 by milton
- **How much does it cost?** R766 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/492388392-milton-s-715-4-1-4-fnpt-m-style-coupler)

## Best For

- milton enthusiasts

## Why This Product

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

## Key Features

- • **Heavy-Duty Brass Build:** Durable brass body and sleeve engineered for professional-grade reliability and longevity.
- • **Buna-N Seal Reliability:** Premium sealing technology guarantees leak-free operation, keeping your workflow uninterrupted.
- • **High-Pressure Performance:** Supports up to 300 PSI, empowering your toughest pneumatic tasks without compromise.
- • **Smooth Quick-Connect Grip:** Ergonomic design ensures effortless tool changes even under high line pressure—no more fumbling.
- • **Military-Spec Precision Fit:** Seamlessly compatible with MIL-C-4109 standard tools for flawless interchangeability.

## Overview

The Milton S-715-4 pack of four 1/4" FNPT M Style couplers delivers military-spec precision, robust brass construction, and a high 300 PSI pressure rating. Designed for seamless compatibility and maximum airflow of 40 SCFM, these couplers feature a Buna-N seal for leak-proof performance and withstand temperatures up to 250°F. Trusted by professionals for effortless, secure tool connections that boost productivity on every job.

## Description

1/4" FNPT M style Kwik change couplers will interchange with all manufacturers who comply with the dimensional requirements of military specification MIL-C-4109. M style couplers have a basic flow size of 1/4" and offer up to 300 PSI. Complete with a Buna-N Seal. These M style couplers have a brass body and sleeve with air flow of 40 SCFM.

Review: heavy duty product , easy to install on the compressor air hose and work very good any time wen i use my air finish gum to do carpentry job .the grip to disconnect is so so good i use my my new rubber air hose with this coupler and i feel happy. i can see this female coupler is for professional and heavy duty users . i recommend ,you will feel in your fingers the difference respect to others similar product .
Review: Very well made fittings. No leaks as of yet. The best part is that it is now easier to connect and disconnect when the line pressure is as high as140 PSI. On the cheaper disconnects it was very hard to attach and detach tools.

## Features

- 1/4" female national pipe thread
- Maximum pressure of 300 pounds per square inch
- Air flow of 40 standard cubic feet per minute
- Maximum temperature of 250 degrees Fahrenheit
- Buna-N seal; Made in USA.1/4" female national pipe thread.Maximum pressure of 300 pounds per square inch.Air flow of 40 standard cubic feet per minute.Maximum temperature of 250 degrees Fahrenheit.Buna-N seal

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00YJ8PDJW |
| ASIN  | B00YJ8PDJW |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #111,585 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #143 in Air Tool Fittings |
| Color | Gold |
| Country of origin  | USA |
| Customer Reviews | 4.6 4.6 out of 5 stars (354) |
| Customer reviews | 4.6 4.6 out of 5 stars (354) |
| Date First Available | 21 September 2023 |
| Date First Available  | 21 September 2023 |
| Finish | Brass |
| Included components | 1 Milton Branded Product |
| Is Discontinued By Manufacturer  | No |
| Item Package Quantity | 1 |
| Item Weight | 109 g |
| Item model number | S-715-4 |
| Item model number  | S-715-4 |
| Manufacturer | Milton |
| Manufacturer  | Milton |
| Material | Brass |
| Measurement System | Inch |
| Number Of Pieces | 4 |
| Part number | S-715-4 |
| Power source type | Air Powered |
| Product Dimensions | 12.07 x 10.16 x 3.81 cm; 108.86 g |
| Product Dimensions  | 12.07 x 10.16 x 3.81 cm; 108.86 g |
| Size | pack of 4 |
| Special Features | 1/4" female national pipe thread -Maximum pressure of 300 pounds per square inch -Air flow of 40 standard cubic feet per minute -Maximum temperature of 250 degrees Fahrenheit -Buna-N seal - - |
| Style | Coupler |

## Product Details

- **Brand:** Milton
- **Colour:** Gold
- **Item dimensions L x W x H:** 12.1 x 10.2 x 3.8 centimeters
- **Material:** Brass
- **Size:** pack of 4

## Images

![Milton S-715-4 1/4" FNPT M Style Coupler - Pack of 4 - Image 1](https://m.media-amazon.com/images/I/61PSPqqB95L.jpg)
![Milton S-715-4 1/4" FNPT M Style Coupler - Pack of 4 - Image 2](https://m.media-amazon.com/images/I/61hcaa6OkmL.jpg)
![Milton S-715-4 1/4" FNPT M Style Coupler - Pack of 4 - Image 3](https://m.media-amazon.com/images/I/61rPlNNpm-L.jpg)
![Milton S-715-4 1/4" FNPT M Style Coupler - Pack of 4 - Image 4](https://m.media-amazon.com/images/I/61urh5A-LZL.jpg)
![Milton S-715-4 1/4" FNPT M Style Coupler - Pack of 4 - Image 5](https://m.media-amazon.com/images/I/71lqzeHx1FL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: My 10+ year old s-715 hisses, even after installing new s-727 plugs. does the very small o-ring in this s-715 eventually wear out?**
A: Yes, orings can get old and less plyable so they will not seal as well

**Q: is this for high pressure propane on an RV tank?**
A: The model number S-715 will be an air style fitting. The maximum pressure will be 300 PSI.

**Q: Where is it made?**
A: Mine says made in USA on packaging. Nothing listed on the part itself. I like mine, purchased several and all work good. Would buy again.

**Q: If a single pack costs $4.68, why does a 2 pack cost $16.99 ??**
A: Better quality  or greed

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***. on 11 January 2014*

heavy duty product , easy to install on the compressor air hose and work very good any time wen i use my air finish gum to do carpentry job .the grip to disconnect is so so good i use my my new rubber air hose with this coupler and i feel happy. i can see this female coupler is for professional and heavy duty users . i recommend ,you will feel in your fingers the difference respect to others similar product .

### ⭐⭐⭐⭐⭐ Review
*by K***S on 15 August 2025*

Very well made fittings. No leaks as of yet. The best part is that it is now easier to connect and disconnect when the line pressure is as high as140 PSI. On the cheaper disconnects it was very hard to attach and detach tools.

### ⭐⭐⭐⭐⭐ Review
*by S***B on 24 September 2025*

Works fine, good quality, and does exactly what it should. Solid coupler with no issues.

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---

*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-02-11*