AN Hose Blanking Plugs

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£2.52

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2-Year Warranty

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Seal Female AN 37° Flare Connections

Seal unused female AN hose ends and fittings with our aluminium AN Hose Blanking Plugs. The male 37° flare connection provides a secure closure for compatible fuel, oil and coolant systems.

Why Choose Our AN Hose Blanking Plugs?

37° Flare Connection

The male connection seals directly against the 37° flare of a compatible female AN fitting or hose end, providing a secure fluid seal without an O-ring or thread sealant.
6061-T6 Aluminium Construction

Precision-machined from lightweight 6061-T6 aluminium for an excellent combination of strength and low weight.
Black Anodised Finish

Protects against wear and corrosion while providing a clean, professional appearance.
Hex Head

Allows straightforward installation and removal using a suitable spanner.

Designed for Female AN Connections

These male blanking plugs are designed specifically for female AN 37° flare connections. Always match the AN size of the plug to the connection being sealed and check that both flare sealing surfaces are clean and undamaged before installation.

Type: AN Hose Blanking Plug For closing female AN hose ends and fittings
Material: 6061-T6 Aluminium Lightweight, high-strength alloy
Finish: Black Anodised Protects against wear and corrosion
Head Type: Hex Head Allows installation and removal with a suitable spanner

Connection 1: AN Male JIC 37° · Male cone flare

Available aluminium AN hose blanking plug sizes
Product Code	Connection 1
PLG-BNK-AL-AN3	AN3 Male 3/8"-24 UNF
PLG-BNK-AL-AN4	AN4 Male 7/16"-20 UNF
PLG-BNK-AL-AN6	AN6 Male 9/16"-18 UNF
PLG-BNK-AL-AN8	AN8 Male 3/4"-16 UNF
PLG-BNK-AL-AN10	AN10 Male 7/8"-14 UNF
PLG-BNK-AL-AN12	AN12 Male 1 1/16"-12 UNF
PLG-BNK-AL-AN16	AN16 Male 1 5/16"-12 UNF

Braided Hose Ends
Fuel Systems
Oil Systems
Coolant Systems
Motorsport Applications
Temporary Blanking
System Maintenance

Free repair or replacement for two years from the date of purchase. Learn more

Frequently Asked Questions

What are AN hose blanking plugs used for?
AN hose blanking plugs are designed to close unused female AN hose ends and fittings, helping prevent fluid loss and contamination while the connection is blanked.
What type of connection do these plugs fit?
They have a male AN connection and are designed to fit a corresponding female AN 37° flare connection.
How do AN hose blanking plugs seal?
The male 37° flare on the plug seats against the corresponding female flare in the AN fitting or hose end. The flare surfaces create the fluid seal rather than the threads themselves.
Do AN hose blanking plugs require an O-ring?
No. The connection seals on the mating 37° flare surfaces and does not require an O-ring.
Should I use PTFE tape or thread sealant?
No. Thread sealant or PTFE tape should not be used on the AN thread. The connection seals on the 37° flare rather than on the thread.
What material are the blanking plugs made from?
They are manufactured from 6061-T6 aluminium and finished with black anodising for protection against wear and corrosion.