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43057-003 — CAP,PROTECTIVE,DUST AND MOISTURE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

43057-003: CAP,PROTECTIVE,DUST AND MOISTURE.

CAP,PROTECTIVE,DUST AND MOISTURE. Key specifications include end_item_identification: 2340-01-530-9371;MILITARY MOTORCYCLE,MULTI-FUEL, part_name_assigned_by_controlling_agency: CAP,BREATHER. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-399-6052, 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
43057-003
NSN: 5340-01-399-6052
NIINs: 013996052, 015603477
FSC: 5340 — Hardware, Commercial
CAGE: 1N651 — KAWASAKI MOTORS CORP USA (USA)
SPECIFICATIONS
end_item_identification2340-01-530-9371;MILITARY MOTORCYCLE,MULTI-FUEL
part_name_assigned_by_controlling_agencyCAP,BREATHER
NSN5340-01-399-6052
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 43057-003 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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 43057-003?
43057-003 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What is the NSN for 43057-003?
43057-003 is cataloged in the U.S. Government catalog under NSN 5340-01-399-6052. This indicates validated use in U.S. government and defense supply chains.
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