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6521-71-003-5111 — 6521-71-003-5111

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

6521-71-003-5111: 6521-71-003-5111.

The 6521-71-003-5111 is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5330-01-454-5224, 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
6521-71-003-5111
NSN: 5330-01-454-5224
FSC: 5330 — Packing and Gasket Materials
CAGE: 78286 — SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP (USA)
SPECIFICATIONS
Part Number6521-71-003-5111
NSN5330-01-454-5224
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 6521-71-003-5111 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
8297-23Reference document
Same NSN cross-reference
Reference document — Design control — primary 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 6521-71-003-5111?
6521-71-003-5111 is a 6521-71-003-5111.
What parts can replace 6521-71-003-5111?
There is 1 known substitute for 6521-71-003-5111: 8297-23. Substitute compatibility should be verified for your specific system.
What is the NSN for 6521-71-003-5111?
6521-71-003-5111 is cataloged in the U.S. Government catalog under NSN 5330-01-454-5224. This indicates validated use in U.S. government and defense supply chains.
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