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PartsTable / COMPONENT / MIL-T-55155/21A
MIL-T-55155/21A ✓ 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 MIL-T-55155/21A is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5940-01-058-3941, 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
MIL-T-55155/21A
NSN: 5940-01-058-3941
FSC: 5940
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
Part NumberMIL-T-55155/21A
NSN5940-01-058-3941
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available MIL-T-55155/21A TITLE COMPONENT PN MIL-T-55155/21A MFR MIL-T-55155/21A
KEY FEATURES
•
ELECTRICAL INSULATION FEATURE: STANDOFF INSULATION
•
LARGEST DIAMETER: 0.093 INCHES SINGLE END IN
•
MATERIAL: COPPER ALLOY OVERALL EXCEPT INSULATION
•
MOUNTING METHOD STYLE: STUD
•
TERMINAL LENGTH: 0.219 INCHES IN
•
BASIC SHAPE STYLE: NONTUBULAR, HEX
•
WIDTH ACROSS FLATS: 0.250 INCHES IN
•
MOUNTING THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
TECHNICAL CHARACTERISTICS (FLIS)
ELECTRICAL INSULATION FEATURESTANDOFF INSULATION
LARGEST DIAMETER0.093 INCHES SINGLE END IN
MATERIALCOPPER ALLOY OVERALL EXCEPT INSULATION
MOUNTING METHOD STYLESTUD
TERMINAL LENGTH0.219 INCHES IN
BASIC SHAPE STYLENONTUBULAR, HEX
WIDTH ACROSS FLATS0.250 INCHES IN
MOUNTING THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
THREAD LENGTH0.250 INCHES IN
MOUNTING THREAD DIAMETER0.112 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
3502832Interchangeable
interchangeable cross-reference
interchangeable
GA231071-1Interchangeable
interchangeable cross-reference
interchangeable
570-2045-01-02Interchangeable
interchangeable cross-reference
interchangeable
SE21XE01SInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-T-55155/21A?
MIL-T-55155/21A is a MIL-T-55155/21A.
What parts can replace MIL-T-55155/21A?
There are 4 known substitutes for MIL-T-55155/21A: 3502832, GA231071-1, 570-2045-01-02 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MIL-T-55155/21A?
MIL-T-55155/21A is cataloged in the Federal Logistics Information System (FLIS) under NSN 5940-01-058-3941. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026