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4915178 — BOOT,DUST AND MOISTURE SEAL

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

4915178: BOOT,DUST AND MOISTURE SEAL.

The BOOT,DUST AND MOISTURE SEAL is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5340-01-082-6625, 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
4915178
NSN: 5340-01-082-6625
FSC: 5340 — Hardware, Commercial
CAGE: 0AHU0 — KALMAR AC INC (USA)
SPECIFICATIONS
Part Number4915178
NSN5340-01-082-6625
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 4915178 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 4
D71420Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
75675Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
CP721083Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
P91586Reference document
Same NSN cross-reference
Reference document — Design control — primary 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 4915178?
4915178 is a BOOT,DUST AND MOISTURE SEAL.
What parts can replace 4915178?
There are 4 known substitutes for 4915178: D71420, 75675, CP721083 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4915178?
4915178 is cataloged in the U.S. Government catalog under NSN 5340-01-082-6625. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.