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J-956 PIECE 4 — GASKET,SPIRAL WOUND

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

J-956 PIECE 4: GASKET,SPIRAL WOUND.

The GASKET,SPIRAL WOUND is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5330-01-371-5117, 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
J-956 PIECE 4
NSN: 5330-01-371-5117
FSC: 5330 — Packing and Gasket Materials
CAGE: 53059 — SPIRAX SARCO INC DBA SPIRAX SARCO (USA)
SPECIFICATIONS
Part NumberJ-956 PIECE 4
NSN5330-01-371-5117
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: J-956 PIECE 4 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
64350Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 J-956 PIECE 4?
J-956 PIECE 4 is a GASKET,SPIRAL WOUND.
What parts can replace J-956 PIECE 4?
There is 1 known substitute for J-956 PIECE 4: 64350. Substitute compatibility should be verified for your specific system.
What is the NSN for J-956 PIECE 4?
J-956 PIECE 4 is cataloged in the U.S. Government catalog under NSN 5330-01-371-5117. This indicates validated use in U.S. government and defense supply chains.
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