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S1520-4004 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

S1520-4004: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include material: RUBBER CHLOROPRENE CLASS CR OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-997-8874, 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
S1520-4004
NSN: 5330-00-997-8874
FSC: 5330 — Packing and Gasket Materials
CAGE: 01551 — EDRO CORPORATION, THE DBA EDRO CORP (USA)
SPECIFICATIONS
materialRUBBER CHLOROPRENE CLASS CR OVERALL
NSN5330-00-997-8874
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: S1520-4004 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
KEY FEATURES
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MATERIAL: RUBBER CHLOROPRENE CLASS CR OVERALL
TECHNICAL CHARACTERISTICS
MATERIALRUBBER CHLOROPRENE CLASS CR OVERALL
SUBSTITUTES & CROSS-REFERENCES 2
1234-4004Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
12J4004Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is S1520-4004?
S1520-4004 is a GASKET.
What parts can replace S1520-4004?
There are 2 known substitutes for S1520-4004: 1234-4004, 12J4004. Substitute compatibility should be verified for your specific system.
What is the NSN for S1520-4004?
S1520-4004 is cataloged in the U.S. Government catalog under NSN 5330-00-997-8874. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.