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4389527 — CAP,PROTECTIVE,DUST AND MOISTURE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

4389527: CAP,PROTECTIVE,DUST AND MOISTURE.

CAP,PROTECTIVE,DUST AND MOISTURE. Key specifications include end_item_identification: 2320-01-653-6516, part_name_assigned_by_controlling_agency: CAP, PROTECTIVE, DUST. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-671-8441, 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
4389527
NSN: 5340-01-671-8441
FSC: 5340 — Hardware, Commercial
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
end_item_identification2320-01-653-6516
part_name_assigned_by_controlling_agencyCAP, PROTECTIVE, DUST
NSN5340-01-671-8441
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 4389527 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
PART NAME ASSIGNED BY CONTROLLING AGENCYCAP, PROTECTIVE, DUST
END ITEM IDENTIFICATION2320-01-653-6516
SUBSTITUTES & CROSS-REFERENCES 1
CP-654Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedAcquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4389527?
4389527 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What parts can replace 4389527?
There is 1 known substitute for 4389527: CP-654. Substitute compatibility should be verified for your specific system.
What is the NSN for 4389527?
4389527 is cataloged in the U.S. Government catalog under NSN 5340-01-671-8441. This indicates validated use in U.S. government and defense supply chains.
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