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| Description | Tube | Thread | Part No. | Price | Buy |
|---|---|---|---|---|---|
| Aeroquip 491 Hose Fitting | 3/16 | 3/8-24 | 491-3 | $21.50 | |
| Aeroquip 491 Hose Fitting Click Here for Kit Components | 1/4 | 7/16-20 | 491-4 | $17.00 | |
| Aeroquip 491 Hose Fitting | 5/16 | 1/2-20 | 491-5 | $23.25 | |
| Aeroquip 491 Hose Fitting | 3/8 | 9/16-18 | 491-6 | $22.50 | |
| Aeroquip 491 Hose Fitting | 1/2 | 3/4-16 | 491-8D | $23.50 | |
| Aeroquip 491 Hose Fitting | 5/8 | 7/8-14 | 491-10D | $38.25 | |
| Aeroquip 491 Hose Fitting | 3/4 | 1-1/16-12 | 491-12D | $47.50 | |
| Aeroquip 491 Hose Fitting | 1 | 1-5/16-12 | 491-16D | $73.75 |
Overview
| Aeroquip 491 hose fittings consist of an AN818 style nut, an externally threaded 37 nipple and an internally threaded hose socket. Fittings of sizes 3 through 6 have nuts and nipples of cadmium plated steel. Nuts and nipples for size 8 and larger are of anodized aluminum. Fittings conform to MS24587. |
Documents
- Tech Data Sheet (PDF)
Reviews
Verified Purchase
AEROQUIP HOSE FITTING 491-6
Good hose fittings installed with proper mandrel and technique.
Verified Purchase
AEROQUIP HOSE FITTINGS 491-4
Verified Purchase
AEROQUIP HOSE FITTING 491-6
As usual. Aeroquip does well
Excellent product and quality. Shipped quickly as well
The RIGHT part I needed for assembling the oil-pressure sensor hose, using Aeroquip-303 hose. Thanks, AC-S!
Seems to hold up well. Be sure to use a mandril when inserting the ferrels or else youll score the inner rubber tubing. Will definitely use again.
Good quality as expected Over priced as expected
Fittings were a snap to install on the associated 303 hose. Pleased with my order.
As others have noted, easy to install, especially if you first look at EAA video on how to. The mandrel for the size you want is a little expensive but very necessary. No can do without the correct size mandrel.
Q&A
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.
The tube size is in reference to the O.D. of the hard line the 303 hose, & 491 fitting, is replacing.
You will need to use the 300 series Stratoflex fittings for the Stratoflex 111 series hose. The 491 series fittings are for the 303 Aeroquip hose series.
Material finish. 471 are all anodized aluminum. 491 Material & Finish:Nut and nipple, sizes 3 through6, cadmium-plated steel. Nut and nipple sizes 8 and up, and socket, anodized aluminum
