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F9421-05 — RETAINER,NUT AND BOLT

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

F9421-05: RETAINER,NUT AND BOLT.

The RETAINER,NUT AND BOLT is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5340-01-135-6684, 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
F9421-05
NSN: 5340-01-135-6684
FSC: 5340 — Hardware, Commercial
CAGE: 80539 — SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUP DIV AEROSPACE - SANTA ANA (USA)
SPECIFICATIONS
Part NumberF9421-05
NSN5340-01-135-6684
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: F9421-05 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
ST3M541-5DSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
10112673Reference document
Same NSN cross-reference
Reference document — Informative reference only
F14421-05Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is F9421-05?
F9421-05 is a RETAINER,NUT AND BOLT.
What parts can replace F9421-05?
There are 3 known substitutes for F9421-05: ST3M541-5D, 10112673, F14421-05. Substitute compatibility should be verified for your specific system.
What is the NSN for F9421-05?
F9421-05 is cataloged in the U.S. Government catalog under NSN 5340-01-135-6684. This indicates validated use in U.S. government and defense supply chains.
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