---
product_id: 22394947
title: "K & S Precision Metals 8139 Round Brass Tube, 1/2\" OD"
brand: "k&s"
price: "¥4655"
currency: JPY
in_stock: true
reviews_count: 8
url: https://www.desertcart.jp/products/22394947-k-and-s-precision-metals-8139-round-brass-tube-1
store_origin: JP
region: Japan
---

# REACH & ROHS Certified Eco-Safe Seamless Alloy 260/272 Precision Proudly Made in USA K & S Precision Metals 8139 Round Brass Tube, 1/2" OD

**Brand:** k&s
**Price:** ¥4655
**Availability:** ✅ In Stock

## Summary

> 🛠️ Elevate your craft with precision brass that means business.

## Quick Answers

- **What is this?** K & S Precision Metals 8139 Round Brass Tube, 1/2" OD by k&s
- **How much does it cost?** ¥4655 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/22394947-k-and-s-precision-metals-8139-round-brass-tube-1)

## Best For

- k&s enthusiasts

## Why This Product

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

## Key Features

- • **Made in the USA:** Support local manufacturing with premium quality brass tubing.
- • **Precision Perfect:** Exact 1/2" outside diameter with a nominal wall thickness of .014" for flawless fit and finish.
- • **Seamless Strength:** Crafted from high-grade Alloy 260/272 for unmatched durability and precision.
- • **Versatile & Ready:** Ideal for professional projects requiring mill finish seamless brass tubes with ASTM B135 certification.
- • **Eco-Conscious Craftsmanship:** Fully REACH, ROHS, and hazardous mineral compliant—build responsibly.

## Overview

The K & S Precision Metals 8139 Round Brass Tube is a 12-inch seamless brass tube made from Alloy 260/272, featuring a 1/2" outside diameter and .014" wall thickness. It meets ASTM B135 standards and is REACH/ROHS compliant, ensuring high quality and eco-friendly manufacturing. Proudly made in the USA, this brass tube is perfect for professionals demanding precision and durability in their metalworking projects.

## Description

K & S Precision Metals 8139 Round Brass Tube, 1/2" OD

## Features

- Alloy 260/272 1/2-3/4 hard SEAMLESS mill finish ASTM B135
- High Quality; Pure Brass
- REACH/ROHS/Hazardous Minerals Compliant
- Made in the USA

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | K&S |
| Material | Brass |
| Color | Brass |
| Product Dimensions | 0.5"L x 0.5"W |
| Nominal Wall Thickness | .014 |
| Outside Diameter | .5 Inches |
| Item Length | 12 Inches |
| UPC | 614121181397 614121101395 614121181403 |
| Manufacturer | K & S Precision Metals |
| Global Trade Identification Number | 00614121101395, 00614121181397 |
| Part Number | 8139 |
| Item Weight | 0.634 ounces |
| Country of Origin | USA |
| Item model number | 8139 |
| Is Discontinued By Manufacturer | No |
| Size | 1/2" OD |
| Style | 1 Tube |
| Item Package Quantity | 1 |
| Cutting Diameter | 0.5 Inches |
| Measurement System | inch |
| Certification | REACH, ASTM B135, ASTM, ROHS |
| Included Components | 1 brass tube |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | Warranty |
| Assembled Diameter | 0.5 Inches |

## Product Details

- **Brand:** K&S
- **Material:** Brass
- **Color:** Brass
- **Product Dimensions:** 0.5"L x 0.5"W
- **Nominal Wall Thickness:** .014
- **Outside Diameter:** .5 Inches
- **Item Length:** 12 Inches
- **UPC:** 614121181397 614121101395 614121181403
- **Manufacturer:** K & S Precision Metals
- **Global Trade Identification Number:** 00614121101395, 00614121181397

## Images

![K & S Precision Metals 8139 Round Brass Tube, 1/2" OD - Image 1](https://m.media-amazon.com/images/I/61qJiRATkKL.jpg)
![K & S Precision Metals 8139 Round Brass Tube, 1/2" OD - Image 2](https://m.media-amazon.com/images/I/61-OffOPzWL.jpg)
![K & S Precision Metals 8139 Round Brass Tube, 1/2" OD - Image 3](https://m.media-amazon.com/images/I/61stapjo5PL.jpg)
![K & S Precision Metals 8139 Round Brass Tube, 1/2" OD - Image 4](https://m.media-amazon.com/images/I/619aimURRZL.jpg)
![K & S Precision Metals 8139 Round Brass Tube, 1/2" OD - Image 5](https://m.media-amazon.com/images/I/61AUo60x8IL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great for nerf modding
*by E***. on May 24, 2025*

I’m a big nerf modder, and this is our industry standard for brass pipes.Slap this thing in your blaster, seal it up, and it shoots way harder.Fits a nerf dart perfectly. Just tight enough to give it a full seal, but still easy to load one in.

### ⭐⭐⭐⭐⭐ Would recommend.
*by D***S on May 24, 2025*

Quality product like everything these guys sell. No complaints.

### ⭐⭐⭐⭐⭐ Great quality..
*by A***R on March 25, 2025*

Nice quality, just wrong size so I returned it.

## Frequently Bought Together

- K & S Precision Metals 8139 Round Brass Tube, 1/2" OD
- K&S 3400 Round Brass Telescopic Tubing Assortment, Small, 12 Pieces, Made in The USA
- Du-Bro 785 1/8" Tubing Bender

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**Shop now:** [https://www.desertcart.jp/products/22394947-k-and-s-precision-metals-8139-round-brass-tube-1](https://www.desertcart.jp/products/22394947-k-and-s-precision-metals-8139-round-brass-tube-1)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-06*