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Technical Data Sheet
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4S1251 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

4S1251: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include end_item_identification: F-111. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-853-7008, 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
4S1251
NSN: 5330-00-853-7008
FSC: 5330 — Packing and Gasket Materials
CAGE: 54686 — SEAL MASTER CORP DBA SEAL MASTER CORP (USA)
SPECIFICATIONS
end_item_identificationF-111
NSN5330-00-853-7008
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 4S1251 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
TECHNICAL CHARACTERISTICS
END ITEM IDENTIFICATIONF-111
SUBSTITUTES & CROSS-REFERENCES 1
4C1167Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4S1251?
4S1251 is a GASKET.
What parts can replace 4S1251?
There is 1 known substitute for 4S1251: 4C1167. Substitute compatibility should be verified for your specific system.
What is the NSN for 4S1251?
4S1251 is cataloged in the U.S. Government catalog under NSN 5330-00-853-7008. This indicates validated use in U.S. government and defense supply chains.
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