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PartsTable / COMPONENT / FED-STD 128
FED-STD 128 ✓ 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

CONNECTOR,RECEPTACLE,ELECTRICAL. Key specifications include material: STEEL COVER, body_width: 2.125 INCHES NOMINAL IN, cover_type: RAISED, body_length: 4.000 INCHES NOMINAL IN, inside_depth: 1.875 INCHES NOMINAL IN, inside_width: 3.781 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5975-00-153-6386, 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
FED-STD 128
NSN: 5975-00-153-6386
FSC: 5975
CAGE: 06542 — FEDERAL STANDARDS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC
SPECIFICATIONS
materialSTEEL COVER
body_width2.125 INCHES NOMINAL IN
cover_typeRAISED
body_length4.000 INCHES NOMINAL IN
inside_depth1.875 INCHES NOMINAL IN
inside_width3.781 INCHES NOMINAL IN
overall_width4.000 INCHES NOMINAL IN
overall_height0.250 INCHES NOMINAL IN
overall_length4.000 INCHES NOMINAL IN
outside_diameter4.000 INCHES NOMINAL IN
special_featuresJUNCTION BOX TYPEVIII, SIZE V, STYLE 66
style_designatorSQUARE-SIDE MOUNTED
NSN5975-00-153-6386
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CONNECTOR,RECEPTACLE,ELECTRICAL TITLE COMPONENT PN FED-STD 128 MFR CONNECTOR,RECEPTACLE,E
KEY FEATURES
•
BODY LENGTH: 3.000 INCHES NOMINAL IN
•
SURFACE TREATMENT: ZINC OR CADMIUM BODY
•
MATERIAL: STEEL BODY
•
INSIDE DEPTH: 2.000 INCHES NOMINAL IN
•
NONDEFINITIVE SPEC/STD DATA: A SIZE AND 4 STYLE AND IV TYPE
•
ENTRANCE QUANTITY: 8
TECHNICAL CHARACTERISTICS (FLIS)
BODY LENGTH3.000 INCHES NOMINAL IN
SURFACE TREATMENTZINC OR CADMIUM BODY
MATERIALSTEEL BODY
OVERALL WIDTH2.000 INCHES NOMINAL IN
INSIDE DEPTH2.000 INCHES NOMINAL IN
NONDEFINITIVE SPEC/STD DATAA SIZE AND 4 STYLE AND IV TYPE
ENTRANCE QUANTITY8
VERIFIED SUBSTITUTES & CROSS-REFERENCES 30
24151 1-2Interchangeable
interchangeable cross-reference
interchangeable
2900Interchangeable
interchangeable cross-reference
interchangeable
SP54171 1-2Interchangeable
interchangeable cross-reference
interchangeable
2714Interchangeable
interchangeable cross-reference
interchangeable
G17B26849-50Interchangeable
interchangeable cross-reference
interchangeable
52151 SPLInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FED-STD 128?
FED-STD 128 is a CONNECTOR,RECEPTACLE,ELECTRICAL.
What parts can replace FED-STD 128?
There are 30 known substitutes for FED-STD 128: 24151 1-2, 2900, SP54171 1-2 and 27 more. Substitute compatibility should be verified for your specific system.
Is FED-STD 128 still available?
FED-STD 128 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