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Technical Data Sheet
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474-6379 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

474-6379: O-RING.

The O-RING is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5331-01-163-4979, 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
474-6379
NSN: 5331-01-163-4979
FSC: 5331 — O-ring
CAGE: A486G — NIMIKKEISTOKESKUS NCB FINLAND (FIN)
SPECIFICATIONS
Part Number474-6379
NSN5331-01-163-4979
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 474-6379 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 3
2152 2151-194Reference document
Same NSN cross-reference
Reference document — Secondary reference
90794-991Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
04250985739617Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 474-6379?
474-6379 is a O-RING.
What parts can replace 474-6379?
There are 3 known substitutes for 474-6379: 2152 2151-194, 90794-991, 04250985739617. Substitute compatibility should be verified for your specific system.
What is the NSN for 474-6379?
474-6379 is cataloged in the U.S. Government catalog under NSN 5331-01-163-4979. This indicates validated use in U.S. government and defense supply chains.
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