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3-904 FKM — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

3-904 FKM: O-RING.

The O-RING is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5331-01-719-0226, 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
3-904 FKM
NSN: 5331-01-719-0226
FSC: 5331 — O-ring
CAGE: 02697 — PARKER-HANNIFIN CORP DIV O-RING DIVISION (USA)
SPECIFICATIONS
Part Number3-904 FKM
NSN5331-01-719-0226
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3-904 FKM 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 4
8635040-6Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
VM100 A7276-904Reference document
Same NSN cross-reference
Reference document — Secondary reference
3-904Reference document
Same NSN cross-reference
Reference document — Secondary reference
8635040Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 3-904 FKM?
3-904 FKM is a O-RING.
What parts can replace 3-904 FKM?
There are 4 known substitutes for 3-904 FKM: 8635040-6, VM100 A7276-904, 3-904 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3-904 FKM?
3-904 FKM is cataloged in the U.S. Government catalog under NSN 5331-01-719-0226. This indicates validated use in U.S. government and defense supply chains.
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