




🔧 Upgrade your airflow game with precision and durability!
The Viair 90001 adapter set includes two solid brass fittings that convert 1/8" Female BSP threads to 1/4" Male NPT, ideal for pneumatic systems like air locking differentials and airbrush compressors. Engineered for durability and ease of installation, this adapter pack ensures reliable, leak-free connections in professional and DIY setups.
















| ASIN | B004RCOY5O |
| Best Sellers Rank | #54,037 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1,659 in Pipe Fittings |
| Brand | VIAIR |
| Color | Silver |
| Connector Type | Adapter |
| Customer Reviews | 4.5 4.5 out of 5 stars (186) |
| Date First Available | March 30, 2010 |
| Exterior Finish | Per Item Description |
| Global Trade Identification Number | 00818114009013 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.32 ounces |
| Item dimensions L x W x H | 3.1 x 2.1 x 1 inches |
| Item model number | 90001 |
| Manufacturer | Viair |
| Manufacturer Part Number | 90001 |
| Material | Stainless Steel |
| Model | 90001 |
| Number of Pieces | 2 |
| OEM Part Number | 90001 |
| Product Dimensions | 3.1 x 2.1 x 1 inches |
| Set Name | VIAIR 90001 Adapter Set (2 Piece) |
| Size | 1/8" x 1/4" |
| Thread Size | 0.25 inch |
| Thread Type | BSP |
| UPC | 818114009013 |
W**C
perfect fit
I could not find this fitting in any of my local hardware stores, so I was very glad to be able to buy it online. Without this adapter I would not have been able to connect my airbrush setup. It worked exactly as described and fit perfectly. Very pleased with it.
M**.
Great for adapting airbrush compressors to 1/4 NPT
Worked great adapting my airbrush compressor to my Paasche airbrush hose.
M**J
Good but no thread seal as pictured.
Part arrived in good shape, but not as pictured. There is no red thread seal on the product received.
F**D
Nice adapter for Master airbrush compressor
Didn't necessarily want to buy this product but when I switched from my cheap Master airbrush setup to my Iwata Revolution, the Iwata air hose didn't fit. I was, to say the least, very disappointed. This product served to act as an adapter from my old setup to my new Iwata airbrush. The only problem is that it doesn't fit exactly and you will probably need to use thread seal tape. Overall a good and necessary purchase. Also it is neat that it comes with two of them just in case a problem arises and you need a replacement.
A**R
Good value
Fit well for intended use
M**.
Airbrush brass fitting
Exactly as advertised, allowed direct connection to 1/4 fitting. Solid brass quality finish.
M**O
They work
They are brass fittings. What else do you need to know?
A**N
Fit perfectly
Fit perfectly to connect my 1/8 compressor male fitting to the 1/4 female airbrush hose that came with my Paasche airbrush. You will need Teflon or thread sealant on the compressor side otherwise it will leak.
J**U
Good service and good product.
I**N
Connected my Pasaache TG-SET Double Action Gravity Feed Airbrush to the TC20 Air Compressor by TCP Global Group. This is a hard to find and important connector for those who need it. I tried many connectors but they all did not work. This one worked perfectly. I cannot thank you enough.
A**R
works exactly as it should and arrived within a day or two. the only thing is that there was a bit of orange around the screw. Not sure if it is rust or the deliberate colouring of it. both pieces had the orange colour and rough texture.
G**N
As expected
S**R
Excellent Product.
Trustpilot
2 weeks ago
3 weeks ago