This page lists the HPS Hard Line AN Tube Nut (Open Ended Female) [Straight] [AN -8] (Aluminum, Black), including what it fits and what we check before dispatch.
![HPS Hard Line AN Tube Nut (Open Ended Female) [Straight] [AN -8] (Aluminum, Black)](https://partsmithco.com/wp-content/uploads/2026/07/AN818_1_6ec89561-78fe-4b24-888b-2eddb0bd9da6.jpg)
Clamp choice matters: constant tension or lined clamps protect the hose surface over heat cycles. Re check clamp torque after the first few heat cycles.
Buyers comparing the hps hard line an tube nut will find the specification detail on this page rather than in a catalog footnote.
The hps hard line an tube nut listed here is checked against your vehicle before dispatch.
Every hps hard line an tube nut order goes through the same fitment review.
Quick specs
- Material: Aluminum
- Finish: Black
- Category: AN Fitting Components
- Price: $14.67 with free shipping over $99
- Availability: in stock, dispatched from the USA
Every order gets a fitment review before dispatch, and anything doubtful gets a message rather than a shipment.
More in this department: Hoses & Fittings · HPS AN Male to Male Union Adapter AN Fitting [Straight] [-2] (Aluminum, Black) · HPS AN Male to Male Union Adapter AN Fitting [Straight] [-16] (Aluminum, Black) · full catalog
You get honest delivery estimates rather than optimistic ones, quoted live for your address.
Before you start the job, the fuel economy maintenance guidance is worth five minutes.
Quick answers
Is fitment guaranteed on this listing?
We verify every doubtful order by hand. Give us the year, make, model and engine option and we will confirm compatibility in one reply.
What are the shipping times?
Most orders dispatch within one business day. You receive tracking by email the moment the parcel is handed to the carrier.
What if it does not fit?
Returns are handled in one reply for most cases. Keep your order confirmation, since it is the only proof of purchase we need.
What quality checks does this get?
We verify diameter and reinforcement specification on every hose order.
![HPS AN Male to Metric Adapter Fitting [Straight] [-6 to M18 x 1.5] (Aluminum, Black)](https://partsmithco.com/wp-content/uploads/2026/07/AN816-06-X_pic1_1_f414e18f-37ad-4910-8abb-c7f9ac2080bf-300x300.jpg)
![HPS AN Male to Metric Adapter Fitting [Straight] [-6 to M22 x 1.5] (Aluminum, Black)](https://partsmithco.com/wp-content/uploads/2026/07/AN816-06-X_pic1_1_84a0bab4-582d-4dc1-a176-6237879f811f-300x300.jpg)
![HPS AN Female Flare Cap Fitting [Straight] [AN -16] (Aluminum, Black)](https://partsmithco.com/wp-content/uploads/2026/07/AN929_1_c735b1de-9c47-4378-8770-106277ec99ca-300x300.jpg)
Reviews
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