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2-331 N674-7 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

2-331 N674-7: O-RING.

The O-RING is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5331-00-451-6543, 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
2-331 N674-7
NSN: 5331-00-451-6543
FSC: 5331 — O-ring
CAGE: 02697 — PARKER-HANNIFIN CORP DIV O-RING DIVISION (USA)
SPECIFICATIONS
Part Number2-331 N674-7
NSN5331-00-451-6543
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 2-331 N674-7 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
SUBSTITUTES & CROSS-REFERENCES 8
2-331N674-70Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
AS568B-331Reference document
Same NSN cross-reference
Reference document — Secondary reference
5700031-068Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
0065234.53.63Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
AS5168B-331Reference document
Same NSN cross-reference
Reference document — Secondary reference
0T65234.53.63Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2-331 N674-7?
2-331 N674-7 is a O-RING.
What parts can replace 2-331 N674-7?
There are 8 known substitutes for 2-331 N674-7: 2-331N674-70, AS568B-331, 5700031-068 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2-331 N674-7?
2-331 N674-7 is cataloged in the U.S. Government catalog under NSN 5331-00-451-6543. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.