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1881-375 — NUT,AXLE,MAIN LANDING GEAR

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

1881-375: NUT,AXLE,MAIN LANDING GEAR.

The NUT,AXLE,MAIN LANDING GEAR is a the manufacturer industrial component. Key specifications include end_item_identification: AIRCRAFT B1B, general_characteristics_item_description: 4.625 IN. LG;4 HOLES EVENLY SPACED;3.625-12 UNJ-3A THD PER MIL-S-8879 A.

This part is cataloged in the U.S. Government catalog under NSN 1620-01-176-5210, 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
1881-375
NSN: 1620-01-176-5210
FSC: 1620 — Aircraft Landing Gear Components
CAGE: 50601 — CIRCOR AEROSPACE, INC. DIV CIRCOR (USA)
SPECIFICATIONS
end_item_identificationAIRCRAFT B1B
general_characteristics_item_description4.625 IN. LG;4 HOLES EVENLY SPACED;3.625-12 UNJ-3A THD PER MIL-S-8879 A
NSN1620-01-176-5210
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available NUT,AXLE,MAIN LANDING GEAR TITLE COMPONENT PN 1881-375 MFR NUT,AXLE,MAIN LANDING
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: 4.625 IN. LG;4 HOLES EVENLY SPACED;3.625-12 UNJ-3A THD PER MIL-S-8879 A
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTION4.625 IN. LG;4 HOLES EVENLY SPACED;3.625-12 UNJ-3A THD PER MIL-S-8879 A
END ITEM IDENTIFICATIONAIRCRAFT B1B
OTHER ITEMS IN FSC 1620 — Aircraft Landing Gear Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
1620-00-491-0877 1620-00-699-0282 1620-00-718-6770 1620-00-736-1020 1620-00-756-9181
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 1881-375?
1881-375 is a NUT,AXLE,MAIN LANDING GEAR.
What is the NSN for 1881-375?
1881-375 is cataloged in the U.S. Government catalog under NSN 1620-01-176-5210. 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.