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A7978A ✓ 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 A7978A is a the manufacturer industrial component. Key specifications include color: BLACK, material: ALUMINUM ALLOY, overall_depth: 0.375 INCHES NOMINAL IN, inside_diameter: 0.251 INCHES NOMINAL IN, outside_diameter: 0.875 INCHES NOMINAL IN, screw_drive_type: SLOT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5355-00-935-7629, 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
A7978A
NSN: 5355-00-935-7629
FSC: 5355
CAGE: 80138 — KAY ELEMETRICS CORPORATION (USA)
SPECIFICATIONS
colorBLACK
materialALUMINUM ALLOY
overall_depth0.375 INCHES NOMINAL IN
inside_diameter0.251 INCHES NOMINAL IN
outside_diameter0.875 INCHES NOMINAL IN
screw_drive_typeSLOT
style_designatorROUND
attachment_methodSETSCREWS
overall_thickness0.562 INCHES NOMINAL IN
nominal_thread_size0.138 INCHES SCREW HOLE IN
setscrew_hole_quantity2
thread_quantity_per_inch32 SCREW HOLE
NSN5355-00-935-7629
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available A7978A TITLE COMPONENT PN A7978A MFR A7978A
KEY FEATURES
•
INSIDE DIAMETER: 0.251 INCHES NOMINAL IN
•
SETSCREW HOLE QUANTITY: 2
•
OVERALL THICKNESS: 0.562 INCHES NOMINAL IN
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC) SCREW HOLE
•
ATTACHMENT METHOD: SETSCREWS
•
STYLE DESIGNATOR: ROUND
•
SCREW DRIVE TYPE: SLOT
•
MATERIAL: ALUMINUM ALLOY
TECHNICAL CHARACTERISTICS (FLIS)
INSIDE DIAMETER0.251 INCHES NOMINAL IN
SETSCREW HOLE QUANTITY2
OVERALL THICKNESS0.562 INCHES NOMINAL IN
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC) SCREW HOLE
ATTACHMENT METHODSETSCREWS
STYLE DESIGNATORROUND
SCREW DRIVE TYPESLOT
MATERIALALUMINUM ALLOY
COLORBLACK
NOMINAL THREAD SIZE0.138 INCHES SCREW HOLE IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
SAE-J512Interchangeable
interchangeable cross-reference
interchangeable
5-060110BInterchangeable
interchangeable cross-reference
interchangeable
SAE J512 5 060110BInterchangeable
interchangeable cross-reference
interchangeable
7978Interchangeable
interchangeable cross-reference
interchangeable
1286868Interchangeable
interchangeable cross-reference
interchangeable
HPK5628Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A7978A?
A7978A is a A7978A.
What parts can replace A7978A?
There are 7 known substitutes for A7978A: SAE-J512, 5-060110B, SAE J512 5 060110B and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A7978A?
A7978A is cataloged in the Federal Logistics Information System (FLIS) under NSN 5355-00-935-7629. 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