Part# 306-8
MFR Model# 306-8
DescriptionHose Size
Hose Size
Burst PSIWgt/FtPart No.
Aeroquip 306 Hose


A low-pressure hose for instrument air & vacuum lines. Consists of an inner tube of seamless synthetic rubber, reinforced with a single layer of cotton braid and a synthetic rubber cover. Used with slip-over hose fittings such as the AN840 series, or with Aeroquip 471 hose fittings when connecting to AN type fittings. Conforms to Specification MIL-H-5593. Specify hose I.D. when ordering. Sold by the foot.
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WARNING: Cancer and Reproductive Harm -


all good

Phil W
February 28, 2020

Works great. Never had the outside covered with oil. If you do you have a leak somewhere it’s not the hose.

Top F
July 30, 2019

Very happy with the quality. I ordered 2 and received 28 Im giving four stars because the delivery took a bit longer than expected.

March 21, 2020

Does what it is supposed to do, but the outside surface becomes moist with oil soon after initial use. No dripping, but I wish it would stay dry.

November 2, 2018


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: What is the shelf life for this Aeroquip 306 hose?

Per the supplier: The Shelf life is 32 quarters or 8 years.

Q: Which hose do you use with the 471-4D fitting?

The 471 fittings are used on 306 Aeroquip hose. The dash number indicates what size fitting works with the size hose, example 471-4D works with 306-4 hose.

Q: How can I order for 306-3 hose if I need 10 meter length?

The 306 listed on this page is priced and sold by the foot. We do not sell in fractions of a foot, so for 10 meters your would need to order qty 33 feet and then trim off the 0.2 extra hose.

Q: I see the 193 hose temperature range is rated at -65F to +165F. What is the Aeroquip 306 hose temperature range rating?

The 306 hose also has the operating temperatures of -65F to +165F.

Q: Is the 306 Aeroquip hose suitable for use as fuel supply line?

No 306 is not approved for fuel. You would want 303 hose.

Q: Can this hose be used for vacuum driven interments?

Yes it can.

Q: Can this hose be used for a oil pressure line from the engine to the oil pressure gauge?

306 hose is approved for instrument air and vac lines, you would need to speak with your A&P/IA to determine the correct hose for your application.

Q: What is the difference between PN 306-6H and PN 306-6. What does H mean? Can you supply PN 303-6H instead of PN 306-6 if both are different? Thank you !

We cannot find any information on part number 306-6H.

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