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Technical Data Sheet
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10003921 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

10003921: O-RING.

The O-RING is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5331-01-209-7297, 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
10003921
NSN: 5331-01-209-7297
FSC: 5331 — O-ring
CAGE: 1EFH8 — GENERAL DYNAMICS LAND SYSTEMS - FORCE PROTECTION INC. DBA GDLS DIV GDLS-FP (USA)
SPECIFICATIONS
Part Number10003921
NSN5331-01-209-7297
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 10003921 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 5
22546-15Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
S000145Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
118476-AReference document
Same NSN cross-reference
Reference document — Secondary reference
2-015Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
08860P016002Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 10003921?
10003921 is a O-RING.
What parts can replace 10003921?
There are 5 known substitutes for 10003921: 22546-15, S000145, 118476-A and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 10003921?
10003921 is cataloged in the U.S. Government catalog under NSN 5331-01-209-7297. This indicates validated use in U.S. government and defense supply chains.
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