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Technical Data Sheet
PartsTable / COMPONENT / 3929AS1421-WDF10
3929AS1421-WDF10 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The CLAMP,LOOP is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-721-8015, 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
3929AS1421-WDF10
NSN: 5340-00-721-8015
FSC: 5340
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
Part Number3929AS1421-WDF10
NSN5340-00-721-8015
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3929AS1421-WDF10 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
MIL-DTL-8603Upgraded Successor
successor cross-reference
successor
TA1716WS4Upgraded Successor
successor cross-reference
successor
MS21919WG4Upgraded Successor
successor cross-reference
successor
74392Upgraded Successor
successor cross-reference
successor
91793Upgraded Successor
successor cross-reference
successor
10335339Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3929AS1421-WDF10?
3929AS1421-WDF10 is a CLAMP,LOOP.
What parts can replace 3929AS1421-WDF10?
There are 18 known substitutes for 3929AS1421-WDF10: MIL-DTL-8603, TA1716WS4, MS21919WG4 and 15 more. Substitute compatibility should be verified for your specific system.
Is 3929AS1421-WDF10 still available?
3929AS1421-WDF10 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026