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2505679-4 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

2505679-4: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYTETRAFLUOROETHYLENE. This part is cataloged in the U.S.

Government catalog under NSN 5331-01-031-8205, 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
2505679-4
NSN: 5331-01-031-8205
FSC: 5331 — O-ring
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialPLASTIC POLYTETRAFLUOROETHYLENE
NSN5331-01-031-8205
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 2505679-4 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
KEY FEATURES
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MATERIAL: PLASTIC POLYTETRAFLUOROETHYLENE
TECHNICAL CHARACTERISTICS
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE
SUBSTITUTES & CROSS-REFERENCES 2
2505679-4 REV LReference document
Same NSN cross-reference
Reference document — Secondary reference
AMS3656Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2505679-4?
2505679-4 is a O-RING.
What parts can replace 2505679-4?
There are 2 known substitutes for 2505679-4: 2505679-4 REV L, AMS3656. Substitute compatibility should be verified for your specific system.
What is the NSN for 2505679-4?
2505679-4 is cataloged in the U.S. Government catalog under NSN 5331-01-031-8205. This indicates validated use in U.S. government and defense supply chains.
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