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| Description | Tube | Thread | Part No. | Price | Buy |
|---|---|---|---|---|---|
| Aeroquip 491 Hose Fitting | 3/16 | 3/8-24 | 491-3 | $30.00 | |
| Aeroquip 491 Hose Fitting Click Here for Kit Components | 1/4 | 7/16-20 | 491-4 | $24.50 | |
| Aeroquip 491 Hose Fitting | 5/16 | 1/2-20 | 491-5 | $33.00 | |
| Aeroquip 491 Hose Fitting | 3/8 | 9/16-18 | 491-6 | $30.25 | |
| Aeroquip 491 Hose Fitting | 1/2 | 3/4-16 | 491-8D | $35.50 | |
| Aeroquip 491 Hose Fitting | 5/8 | 7/8-14 | 491-10D | $55.75 | |
| Aeroquip 491 Hose Fitting | 3/4 | 1-1/16-12 | 491-12D | $73.75 | |
| Aeroquip 491 Hose Fitting | 1 | 1-5/16-12 | 491-16D | $100.95 |
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. |
 |
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov. |
Documents
- Tech Data Sheet (PDF)
Reviews
Perfect
Verified Purchase
Aeroquip Hose Fittings 491-4
Verified Purchase
Aeroquip Hose Fitting # 491-8D
As advertised. These fittings work great.
Verified Purchase
Aeroquip Hose Fittings 491-4
Verified Purchase
Aeroquip Hose Fittings 491-4
As advertised. Good product.
Verified Purchase
Aeroquip Hose Fittings 491-4
Verified Purchase
Aeroquip Fitting 491-3
Up dating oil pressure line
Verified Purchase
Aeroquip Fitting 491-3
Verified Purchase
Aeroquip Hose Fitting # 491-8D
Worked perfectly. I also ordered the assembly tool.
Verified Purchase
Aeroquip Hose Fitting # 491-8D
Quality product
Verified Purchase
Aeroquip Hose Fittings 491-4
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
