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PartsTable / COMPONENT / ST81D178
ST81D178 ✓ 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 body_style: STRAIGHT SHAPE W/FLANGE, terminal_type: SCREW SINGLE MATING END ALL CONTACT GROUPINGS, shell_material: PLASTIC, bushing_diameter: 2.062 INCHES MAXIMUM IN, contact_material: COPPER ALLOY SINGLE MATING END ALL CONTACT GROUPINGS, overall_diameter: 2.875 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5935-01-009-8513, 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
ST81D178
NSN: 5935-01-009-8513
FSC: 5935
CAGE: 04236 — LOCKHEED MARTIN CORP (USA)
SPECIFICATIONS
body_styleSTRAIGHT SHAPE W/FLANGE
terminal_typeSCREW SINGLE MATING END ALL CONTACT GROUPINGS
shell_materialPLASTIC
bushing_diameter2.062 INCHES MAXIMUM IN
contact_materialCOPPER ALLOY SINGLE MATING END ALL CONTACT GROUPINGS
overall_diameter2.875 INCHES MAXIMUM IN
terminal_locationBACK SINGLE MATING END ALL CONTACT GROUPINGS
mating_end_quantity1
polarization_methodCONTACT
contact_removabilityNONREMOVABLE SINGLE MATING END ALL CONTACT GROUPINGS
mounting_hole_radius1.344 INCHES NOMINAL IN
included_contact_typeCURVED PIN W/OUTSIDE LIP SINGLE MATING END FIRST CONTACT GROUPING
NSN5935-01-009-8513
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CONNECTOR,RECEPTACLE,ELECTRICAL TITLE COMPONENT PN ST81D178 MFR CONNECTOR,RECEPTACLE,E
KEY FEATURES
•
MOUNTING HOLE RADIUS: 1.250 INCHES NOMINAL IN
•
OVERALL DIAMETER: 2.875 INCHES NOMINAL IN
•
UNTHREADED MOUNTING HOLE DIAMETER: 0.188 INCHES MAXIMUM IN
•
MATING END QUANTITY: 1
•
CONTACT POSITION ARRANGEMENT STYLE: 3 SINGLE MATING END
•
BUSHING DIAMETER: 2.062 INCHES NOMINAL IN
•
TERMINAL TYPE: SCREW SINGLE MATING END ALL CONTACT GROUPINGS
•
BODY STYLE: STRAIGHT SHAPE W/FLANGE
TECHNICAL CHARACTERISTICS (FLIS)
MOUNTING HOLE RADIUS1.250 INCHES NOMINAL IN
OVERALL DIAMETER2.875 INCHES NOMINAL IN
UNTHREADED MOUNTING HOLE DIAMETER0.188 INCHES MAXIMUM IN
MATING END QUANTITY1
CONTACT POSITION ARRANGEMENT STYLE3 SINGLE MATING END
BUSHING DIAMETER2.062 INCHES NOMINAL IN
TERMINAL TYPESCREW SINGLE MATING END ALL CONTACT GROUPINGS
BODY STYLESTRAIGHT SHAPE W/FLANGE
CONTACT MAXIMUM DC VOLTAGE RATING IN VOLTS125.0 SINGLE MATING END ALL CONTACT GROUPINGS
CONTACT MAXIMUM AC VOLTAGE RATING IN VOLTS125.0 SINGLE MATING END ALL CONTACT GROUPINGS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
TB1363DInterchangeable
interchangeable cross-reference
interchangeable
947489-2199Interchangeable
interchangeable cross-reference
interchangeable
MIL-S-22473 GRCVInterchangeable
interchangeable cross-reference
interchangeable
2315Interchangeable
interchangeable cross-reference
interchangeable
FFB171Interchangeable
interchangeable cross-reference
interchangeable
177009-121Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ST81D178?
ST81D178 is a CONNECTOR,RECEPTACLE,ELECTRICAL.
What parts can replace ST81D178?
There are 21 known substitutes for ST81D178: TB1363D, 947489-2199, MIL-S-22473 GRCV and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for ST81D178?
ST81D178 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5935-01-009-8513. 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