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863-410903 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

863-410903: O-RING.

The O-RING is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5331-01-493-4521, 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
863-410903
NSN: 5331-01-493-4521
FSC: 5331 — O-ring
CAGE: 4X630 — GUILD ASSOCIATES INC (USA)
SPECIFICATIONS
Part Number863-410903
NSN5331-01-493-4521
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 863-410903 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 1
2316-29Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedAcquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 863-410903?
863-410903 is a O-RING.
What parts can replace 863-410903?
There is 1 known substitute for 863-410903: 2316-29. Substitute compatibility should be verified for your specific system.
What is the NSN for 863-410903?
863-410903 is cataloged in the U.S. Government catalog under NSN 5331-01-493-4521. This indicates validated use in U.S. government and defense supply chains.
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