---
product_id: 4982481
title: "Viair 90001 1/8\" Female BSP - 1/4\" Male NPT Adaptor - 2 Piece"
brand: "viair"
price: "¥2540"
currency: JPY
in_stock: true
category: "Viair"
url: https://www.desertcart.jp/products/4982481-viair-90001-1-8-female-bsp-1-4-male-npt
store_origin: JP
region: Japan
---

# 1/8" Female BSP to 1/4" Male NPT adapter 2-piece set for versatile installation Solid brass construction for durability Viair 90001 1/8" Female BSP - 1/4" Male NPT Adaptor - 2 Piece

**Brand:** viair
**Price:** ¥2540
**Availability:** ✅ In Stock

## Summary

> 🔧 Upgrade your pneumatic game with precision and durability!

## Quick Answers

- **What is this?** Viair 90001 1/8" Female BSP - 1/4" Male NPT Adaptor - 2 Piece by viair
- **How much does it cost?** ¥2540 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/4982481-viair-90001-1-8-female-bsp-1-4-male-npt)

## Best For

- viair enthusiasts

## Why This Product

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

## Key Features

- • **Durable Brass Build:** Crafted from solid brass to ensure long-lasting corrosion resistance and strength.
- • **Compact & Lightweight:** Small 3.1 x 2.1 x 1 inch size with just 9g weight, ideal for tight spaces without bulk.
- • **Dual-Pack Convenience:** Includes two fittings per pack, perfect for multi-point air locking differential setups.
- • **Pro-Recommended Installation:** Thread locker suggested to guarantee leak-proof, professional-grade performance.
- • **Precision Thread Compatibility:** Seamlessly adapts BSP to NPT threads for flawless pneumatic connections.

## Overview

The Viair 90001 adapter set features two solid brass fittings that convert 1/8" Female BSP threads to 1/4" Male NPT, designed specifically for air locking differential plumbing. Compact and lightweight, these adapters ensure reliable, leak-resistant connections when used with thread locker. Backed by a one-year manufacturer warranty, this set is a trusted choice for professional-grade pneumatic installations.

## Description

To make the installation of pneumatic systems as simple as possible, VIAIR offers a complete line of fitting accessories that include air source relocation kits, safety valves, quick connect couplers & studs, check valves, adapters, and more.

## Features

- Adapt from 1/8" Female BSP to 1/4" Male NPT
- Used for air locking differential plumbing
- Two fittings per pack
- Use of thread locker suggested
- Solid brass construction

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004RCOY5O |
| Best Sellers Rank | #77,620 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #2,355 in Pipe Fittings |
| Brand Name | VIAIR |
| Color | Silver |
| Connector Type | Adapter |
| Customer Reviews | 4.5 4.5 out of 5 stars (192) |
| Exterior Finish | Per Item Description |
| Global Trade Identification Number | 00818114009013 |
| Included Components | Fitting |
| Item Dimensions | 3.1 x 2.1 x 1 inches |
| Item Type Name | Air Line Fitting |
| Item Weight | 9.07 g |
| Manufacturer | Viair |
| Manufacturer Part Number | 90001 |
| Manufacturer Warranty Description | All VIAIR products come with a One Year Manufacturer Defect Warranty |
| Material Type | Stainless Steel |
| Model Number | 90001 |
| Number of Pieces | 2 |
| Set Name | VIAIR 90001 Adapter Set (2 Piece) |
| Size | 1/8" x 1/4" |
| Thread Size | 0.25 inch |
| Thread Type | BSP |
| UPC | 818114009013 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** VIAIR
- **Color:** Silver
- **Connector Type:** Adapter
- **Exterior Finish:** Per Item Description
- **Item Weight:** 9.07 g
- **Item dimensions L x W x H:** 3.1 x 2.1 x 1 inches
- **Material:** Stainless Steel
- **Size:** 1/8" x 1/4"
- **Thread Size:** 0.25 inch
- **Thread Type:** BSP

## Images

![Viair 90001 1/8" Female BSP - 1/4" Male NPT Adaptor - 2 Piece - Image 1](https://m.media-amazon.com/images/I/71G9q22jNrL.jpg)

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**Shop now:** [https://www.desertcart.jp/products/4982481-viair-90001-1-8-female-bsp-1-4-male-npt](https://www.desertcart.jp/products/4982481-viair-90001-1-8-female-bsp-1-4-male-npt)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-09-27*