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2181143 — BOX ASSEMBLY,STUFFI

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

2181143: BOX ASSEMBLY,STUFFI.

The BOX ASSEMBLY,STUFFI is a the manufacturer industrial component. Key specifications include end_item_identification: ALCO 251 ENGINE, AIR STARTING MOTOR, ALCO POWER INC. This part is cataloged in the U.S.

Government catalog under NSN 3040-00-450-3799, 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
2181143
NSN: 3040-00-450-3799
NIINs: 004503799, 007342031, 014702167
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
end_item_identificationALCO 251 ENGINE, AIR STARTING MOTOR, ALCO POWER INC
NSN3040-00-450-3799
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BOX ASSEMBLY,STUFFI TITLE COMPONENT PN 2181143 MFR BOX ASSEMBLY,STUFFI
KEY FEATURES
•
SURFACE FINISH: 32.0 MICROINCHES
•
SECOND END HOLE DIAMETER: 0.1870 INCHES NOMINAL IN
•
STEP QUANTITY: 8
•
FIRST END DIAMETER: 0.6240 INCHES NOMINAL IN
•
SECOND END DIAMETER: 0.7480 INCHES NOMINAL IN
•
LARGEST STEP DIAMETER: 0.748 INCHES NOMINAL IN
•
FIRST END STYLE: PLAIN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI 4130 ASSN STD SINGLE MATERIAL RESPONSE OR MIL-S-16974,GR 4130 COND N MIL SPEC SINGLE MATERIAL RESPONSE
TECHNICAL CHARACTERISTICS
SURFACE FINISH32.0 MICROINCHES
SECOND END HOLE DIAMETER0.1870 INCHES NOMINAL IN
STEP QUANTITY8
FIRST END DIAMETER0.6240 INCHES NOMINAL IN
SECOND END DIAMETER0.7480 INCHES NOMINAL IN
LARGEST STEP DIAMETER0.748 INCHES NOMINAL IN
FIRST END STYLEPLAIN
MATERIAL DOCUMENT AND CLASSIFICATIONAISI 4130 ASSN STD SINGLE MATERIAL RESPONSE OR MIL-S-16974,GR 4130 COND N MIL SPEC SINGLE MATERIAL RESPONSE
OVERALL LENGTH21.500 INCHES NOMINAL IN
SECOND END DISTANCE FROM HOLE CENTER TO END0.810 INCHES NOMINAL IN
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 2181143?
2181143 is a BOX ASSEMBLY,STUFFI.
What is the NSN for 2181143?
2181143 is cataloged in the U.S. Government catalog under NSN 3040-00-450-3799. 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.