Aeroquip hoses & fittings

[lostpilot28]

Why is it so hard to find a steel braided hose with steel fittings for FWF use? After reading the multitude of threads here and on other sites, I'm sticking with aviation specific fuel lines, but I'm building my own. I can find non-steel braided (Aeroquip p/n 303) hose with Steel fittings, and steel braided 701 hose with aluminum fittings.

Anyone know where to get steel braided aviation hose with steel fittings? I don't really care about brand so much. I can't find the right size with brands other than Aeroquip.

[islandmonkey]

Try TS Flightlines, here is their website. They do brakes and oil lines.



http://www.tsflightlines.com/

[lostpilot28]

Thanks, Anthony...I want to build my own hoses. I was under the impression that TSFlightlines just builds hoses. Any other sites with prices listed?

[Sam Buchanan]

Originally Posted by lostpilot28

Why is it so hard to find a steel braided hose with steel fittings for FWF use? After reading the multitude of threads here and on other sites, I'm sticking with aviation specific fuel lines, but I'm building my own. I can find non-steel braided (Aeroquip p/n 303) hose with Steel fittings, and steel braided 701 hose with aluminum fittings.

Anyone know where to get steel braided aviation hose with steel fittings? I don't really care about brand so much. I can't find the right size with brands other than Aeroquip.

I've built several steel-braided hoses with aluminum fittings for the RV-6 and haven't had any service problems for the past dozen years, even after reusing some of the fittings when rebuilding hoses due to service life. It appears aluminum fittings are the norm for the auto racing community.

But I can't provide a source to answer your question.

[Lars]

Eaton Aeroquip Super Gem stainless steel fittings work with Aeroquip 666 (teflon lined) hose. Not cheap.

Aircraft Spruce sells the straight versions: http://www.aircraftspruce.com/catalo...tting66000.php

[Jerry Wilcox]

I agree with post #4 and have made my own hoses from Aeroquip 303 and 491 fittings for 9 airplanes with no problems. I can warn you that some of these hoses are difficult to put together and the larger they are the harder, -8 and -10 sizes being quite a task with hand tools. The 303hose is steel braded but also covered by a cloth outer braid. If you will be using fire sleeve in the engine bay you don't see the nice SS brade of the other hoses anyway. You will also need the proper tooling to cut and assemble the hose. Always, always use aircraft quality proven hose and fittings in the engine area, none of the auto/race car stuff will do.
Jerry

[WingsOnWheels]

http://www.anplumbing.com/

Has steel and stainless steel fittings.

[bpattonsoa]

Summit Racing is a good source of all AN, hoses and fittings. Prices are reasonable. Here is their page with steel hose fittings:

http://www.summitracing.com/search/?...0fitting&dds=1

Bruce Patton
RV-6A flying
HP-18 Flying
RV-10 - ordering on 1/20/12

[C-GRVT]

Or are they industrial fittings?
From a Parker Aerospace publication:

"AN flare and 37 degree industrial flare fittings appear to be functionally interchangeable, but they are not. The most notable difference is in the threads. AN fittings use a increased root radius thread ("J" thread) and a tighter tolerance (Class 3) to achieve a 40% increase in fatigue strength and 10% increase in shear strength.
These two fittings function the same, they look the same, AND the industrial version is much less expensive to manufacturer. The problem is that the industrial version is 40% weaker."

It may be that you know and are content that you are being supplied with JIC fittings instead of AN, but if you want an "AN" fitting, worth asking the question from the supplier.

Perhaps TS Flightlines can wade in here.

Bill Brooks
Ottawa, Canada
RV-6A finishing

[Lars]

Originally Posted by C-GRVT

Or are they industrial fittings?
From a Parker Aerospace publication:

"AN flare and 37 degree industrial flare fittings appear to be functionally interchangeable, but they are not. The most notable difference is in the threads. AN fittings use a increased root radius thread ("J" thread) and a tighter tolerance (Class 3) to achieve a 40% increase in fatigue strength and 10% increase in shear strength.
These two fittings function the same, they look the same, AND the industrial version is much less expensive to manufacturer. The problem is that the industrial version is 40% weaker."

It may be that you know and are content that you are being supplied with JIC fittings instead of AN, but if you want an "AN" fitting, worth asking the question from the supplier.

Perhaps TS Flightlines can wade in here.

Bill Brooks
Ottawa, Canada
RV-6A finishing

The Aeroquip Super Gem fittings I linked above are AN. Be aware that Aeroquip sells an industrial grade (JIC) line of Super Gem fittings as well, if you are concerned about sticking with AN.

In 25+ years of using automotive/racer grade Aeroquip/Russell/Earls fittings in automotive applications I have yet to have one fail, but I got paranoid on my RV build and bought aviation-spec firesleeved hoses.

I have a PDF version of Aeroquip's 666 hose & Super Gem reusable fittings brochure.