PartsTable
Technical Data Sheet
71306557 ✓ Verified by PartsTable
· ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The O-RING is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-371-7816, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
71306557
NSN: 5331-01-371-7816
FSC: 5331 — O-RING
CAGE: 05262 — FREUDENBERG-NOK GENERAL PARTNERSHIP (USA)
SPECIFICATIONS
Part Number71306557
NSN5331-01-371-7816
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 71306557 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
30291801Interchangeable
interchangeable cross-reference
interchangeable
3A650Interchangeable
interchangeable cross-reference
interchangeable
AS126940Interchangeable
interchangeable cross-reference
interchangeable
126940Interchangeable
interchangeable cross-reference
interchangeable
MIL-G-1149 REV C TY 2 CL 1Interchangeable
interchangeable cross-reference
interchangeable
MIL-PRF-1149DInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 71306557?
71306557 is a O-RING.
What parts can replace 71306557?
There are 12 known substitutes for 71306557: 30291801, 3A650, AS126940 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 71306557?
71306557 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-371-7816. This indicates validated use in U.S. government and defense supply chains.
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