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9S2391 — SEAL,PLAIN ENCASED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

9S2391: SEAL,PLAIN ENCASED.

The SEAL,PLAIN ENCASED is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5330-00-237-6928, 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
9S2391
NSN: 5330-00-237-6928
FSC: 5330 — Packing and Gasket Materials
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
Part Number9S2391
NSN5330-00-237-6928
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 9S2391 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 5
1958509Reference document
Same NSN cross-reference
Reference document — Secondary reference
00044 TY 1 CASE TY 6B ELEMENTSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
472258RASame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
523532Reference document
Same NSN cross-reference
Reference document — Secondary reference
00044Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 9S2391?
9S2391 is a SEAL,PLAIN ENCASED.
What parts can replace 9S2391?
There are 5 known substitutes for 9S2391: 1958509, 00044 TY 1 CASE TY 6B ELEMENT, 472258RA and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 9S2391?
9S2391 is cataloged in the U.S. Government catalog under NSN 5330-00-237-6928. This indicates validated use in U.S. government and defense supply chains.
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