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Technical Data Sheet
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EJ41158 — EJ41158

✓ Government record, cited
THE ENTWISTLE COMPANY LLC · ORING SEAL
PRODUCT OVERVIEW

EJ41158: EJ41158.

The EJ41158 is a THE ENTWISTLE COMPANY LLC industrial component. This part is cataloged in the U.S. Government catalog under NSN 5340-01-452-7788, 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
EJ41158
NSN: 5340-01-452-7788
FSC: 5340 — Hardware, Commercial
CAGE: 20722 — THE ENTWISTLE COMPANY LLC (USA)
SPECIFICATIONS
Part NumberEJ41158
ManufacturerTHE ENTWISTLE COMPANY LLC
NSN5340-01-452-7788
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: EJ41158 MFR: THE ENTWISTLE COMPANY LLC ⚠ 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
EJ51116B ITEM NO. 8Same 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 EJ41158?
EJ41158 is a EJ41158 manufactured by THE ENTWISTLE COMPANY LLC.
What parts can replace EJ41158?
There is 1 known substitute for EJ41158: EJ51116B ITEM NO. 8. Substitute compatibility should be verified for your specific system.
What is the NSN for EJ41158?
EJ41158 is cataloged in the U.S. Government catalog under NSN 5340-01-452-7788. This indicates validated use in U.S. government and defense supply chains.
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