PartSmith Co. supplies the HPS NPT Male to Male Union Adapter Fitting [Straight] [1/8 NPT] (Aluminum, Black) to drivers, shops and fleets across the USA.
![HPS NPT Male to Male Union Adapter Fitting [Straight] [1/8 NPT] (Aluminum, Black)](https://partsmithco.com/wp-content/uploads/2026/07/AN911_1-1.jpg)
Inner diameter must match the fitting exactly, since eyeballing sizes is how leaks begin. Measure inner diameter at the fitting rather than estimating by eye.
Every hps npt male to male union adapter order goes through the same fitment review.
Ordering the hps npt male to male union adapter takes a minute and the confirmation reaches you straight away.
Our team knows the hps npt male to male union adapter well, so ask if anything about the specification is unclear.
Part details
- Material: Aluminum
- Finish: Black
- Category: AN Fitting Components
- Price: $19.13 with free shipping over $99
- Availability: in stock, dispatched from the USA
Send the old part number or a photo and we will match it against this listing before you commit.
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Stock levels shown here are live, so what you order is what is on the shelf ready to travel.
General guidance on this system is published in the Car Care Council maintenance tips.
Frequently asked questions
Will this part fit my vehicle?
Send your VIN or your year, make and model and our fitment desk confirms the part against manufacturer data before it ships. The check is free and usually answered the same business day.
Do you ship the same day?
Most orders dispatch within one business day. You receive tracking by email the moment the parcel is handed to the carrier.
Is there a warranty on this?
Contact support before removing or returning anything, so the right process starts on the first message and nothing is voided by accident.
How do you verify this part?
Lines and fittings are checked for pressure rating, inner diameter and ply count before shipping.
![HPS NPT Hex Plug Fitting [1/8 NPT] (Aluminum, Black)](https://partsmithco.com/wp-content/uploads/2026/07/AN933_1-300x300.jpg)
![HPS NPT Allen Plug Fitting [1/8 NPT] (Aluminum, Black)](https://partsmithco.com/wp-content/uploads/2026/07/AN932_1_11e3bb56-b4df-4954-84cd-0d354b2dd8ff-300x300.jpg)
![HPS NPT Allen Plug Fitting [3/8 NPT] (Aluminum, Black)](https://partsmithco.com/wp-content/uploads/2026/07/AN932_1_6be249de-b49f-4373-8667-06e8edb296af-300x300.jpg)
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