PartSmith Co. lists the HPS Hard Line AN Tube Nut (Open Ended Female) [Straight] [AN -6] (Aluminum, Black) with real inventory, honest specs and fast USA dispatch.
![HPS Hard Line AN Tube Nut (Open Ended Female) [Straight] [AN -6] (Aluminum, Black)](https://partsmithco.com/wp-content/uploads/2026/07/AN818_1_28eb009f-a514-4dff-9f79-c7bf12306fd5-1.jpg)
Silicone tolerates far more heat than standard rubber and stays flexible for many years. Re check clamp torque after the first few heat cycles.
The hps hard line an tube nut ships protected, because a damaged part helps nobody.
Drivers choose the hps hard line an tube nut here for honest specification detail and quick dispatch.
Buyers comparing the hps hard line an tube nut will find the specification detail on this page rather than in a catalog footnote.
The important numbers
- Material: Aluminum
- Finish: Black
- Category: AN Fitting Components
- Price: $14.80 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.
More in this department: Hoses & Fittings · HPS AN Male to Male Union Adapter AN Fitting [Straight] [-8] (Aluminum, Black) · HPS AN Male to Male Union Adapter AN Fitting [Straight] [-6] (Aluminum, Black) · full catalog
Fast dispatch matters when a vehicle is off the road, which is why we prioritize same day picking.
A neutral reference for this work is the Car Care Council maintenance tips.
Buyer questions
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.
Do you ship the same day?
Same business day dispatch applies to orders placed before the early afternoon cutoff, with tracking that updates at every carrier scan.
Can I return this part?
If the part does not fit, message our support desk with the order number and we will arrange an exchange or refund. Keep the packaging until the test fit is done.
What quality checks does this get?
Lines and fittings are checked for pressure rating, inner diameter and ply count before shipping.
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![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)
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![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)
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