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4JA901 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

4JA901: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include end_item_identification: 2320-01-318-9902 HET (HEAVY EQUIPMENT TRANSPORTER). This part is cataloged in the U.S.

Government catalog under NSN 5331-01-425-3438, 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
4JA901
NSN: 5331-01-425-3438
FSC: 5331 — O-ring
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
end_item_identification2320-01-318-9902 HET (HEAVY EQUIPMENT TRANSPORTER)
NSN5331-01-425-3438
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 4JA901 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 IDENTIFICATION2320-01-318-9902 HET (HEAVY EQUIPMENT TRANSPORTER)
SUBSTITUTES & CROSS-REFERENCES 2
427682Reference document
Same NSN cross-reference
Reference document — Secondary reference
2DM40Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4JA901?
4JA901 is a O-RING.
What parts can replace 4JA901?
There are 2 known substitutes for 4JA901: 427682, 2DM40. Substitute compatibility should be verified for your specific system.
What is the NSN for 4JA901?
4JA901 is cataloged in the U.S. Government catalog under NSN 5331-01-425-3438. This indicates validated use in U.S. government and defense supply chains.
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