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1878421 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The SPRING,HELICAL,TORSION is a the manufacturer industrial component. Key specifications include end_style: PARALLEL END OVERALL, end_length: 0.281 INCHES NOMINAL BOTH ENDS IN, inside_diameter: 1.375 INCHES NOMINAL IN, style_designator: SINGLE TORSION LEFT HAND, spring_free_length: 1.438 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5360-00-358-7818, 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
1878421
NSN: 5360-00-358-7818
FSC: 5360
CAGE: 7X677 — GENERAL MOTORS LLC DBA GENERAL MOTORS LLC (USA)
SPECIFICATIONS
end_stylePARALLEL END OVERALL
end_length0.281 INCHES NOMINAL BOTH ENDS IN
inside_diameter1.375 INCHES NOMINAL IN
style_designatorSINGLE TORSION LEFT HAND
spring_free_length1.438 INCHES NOMINAL IN
NSN5360-00-358-7818
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SPRING,HELICAL,TORSION TITLE COMPONENT PN 1878421 MFR SPRING,HELICAL,TORSION
KEY FEATURES
•
INSIDE DIAMETER: 1.375 INCHES NOMINAL IN
•
END STYLE: PARALLEL END OVERALL
•
STYLE DESIGNATOR: SINGLE TORSION LEFT HAND
•
SPRING FREE LENGTH: 1.438 INCHES NOMINAL IN
•
END LENGTH: 0.281 INCHES NOMINAL BOTH ENDS IN
TECHNICAL CHARACTERISTICS (FLIS)
INSIDE DIAMETER1.375 INCHES NOMINAL IN
END STYLEPARALLEL END OVERALL
STYLE DESIGNATORSINGLE TORSION LEFT HAND
SPRING FREE LENGTH1.438 INCHES NOMINAL IN
END LENGTH0.281 INCHES NOMINAL BOTH ENDS IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
EA75Interchangeable
interchangeable cross-reference
interchangeable
10145Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-1222JInterchangeable
interchangeable cross-reference
interchangeable
AMS10137-1603Interchangeable
interchangeable cross-reference
interchangeable
AMS-QQ-A-200/11Interchangeable
interchangeable cross-reference
interchangeable
AND10137-1603Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1878421?
1878421 is a SPRING,HELICAL,TORSION.
What parts can replace 1878421?
There are 21 known substitutes for 1878421: EA75, 10145, MIL-DTL-1222J and 18 more. Substitute compatibility should be verified for your specific system.
Is 1878421 still available?
1878421 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026