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HB178/4-1 — Technical Data Sheet

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— · 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 BRUSH,WIRE,SCRATCH is a the manufacturer industrial component. Key specifications include block_width: 2.250 INCHES MINIMUM AND 2.375 INCHES MAXIMUM IN, block_length: 7.000 INCHES MINIMUM AND 7.500 INCHES MAXIMUM IN, style_designator: BLOCK HANDLE STRAIGHT RECTANGULAR FACE, brush_part_material: STEEL, brush_material_exposed_length: 1.625 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN, brush_row_quantity_along_length: 19. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 7920-00-246-8501, 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
HB178/4-1
NSN: 7920-00-246-8501
FSC: 7920
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
block_width2.250 INCHES MINIMUM AND 2.375 INCHES MAXIMUM IN
block_length7.000 INCHES MINIMUM AND 7.500 INCHES MAXIMUM IN
style_designatorBLOCK HANDLE STRAIGHT RECTANGULAR FACE
brush_part_materialSTEEL
brush_material_exposed_length1.625 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN
brush_row_quantity_along_width6
brush_row_quantity_along_length19
NSN7920-00-246-8501
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BRUSH,WIRE,SCRATCH TITLE COMPONENT PN HB178/4-1 MFR BRUSH,WIRE,SCRATCH
KEY FEATURES
•
BRUSH MATERIAL EXPOSED LENGTH: 1.625 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN
•
BRUSH ROW QUANTITY ALONG LENGTH: 19
•
BRUSH ROW QUANTITY ALONG WIDTH: 6
•
BLOCK LENGTH: 7.000 INCHES MINIMUM AND 7.500 INCHES MAXIMUM IN
•
BRUSH PART MATERIAL: STEEL
•
STYLE DESIGNATOR: BLOCK HANDLE STRAIGHT RECTANGULAR FACE
•
BLOCK WIDTH: 2.250 INCHES MINIMUM AND 2.375 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
BRUSH MATERIAL EXPOSED LENGTH1.625 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN
BRUSH ROW QUANTITY ALONG LENGTH19
BRUSH ROW QUANTITY ALONG WIDTH6
BLOCK LENGTH7.000 INCHES MINIMUM AND 7.500 INCHES MAXIMUM IN
BRUSH PART MATERIALSTEEL
STYLE DESIGNATORBLOCK HANDLE STRAIGHT RECTANGULAR FACE
BLOCK WIDTH2.250 INCHES MINIMUM AND 2.375 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
1802Interchangeable
interchangeable cross-reference
interchangeable
AA3119/4Interchangeable
interchangeable cross-reference
interchangeable
A-A-3119Interchangeable
interchangeable cross-reference
interchangeable
13AInterchangeable
interchangeable cross-reference
interchangeable
H-B-178 TY5Interchangeable
interchangeable cross-reference
interchangeable
7920002237649Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is HB178/4-1?
HB178/4-1 is a BRUSH,WIRE,SCRATCH.
What parts can replace HB178/4-1?
There are 26 known substitutes for HB178/4-1: 1802, AA3119/4, A-A-3119 and 23 more. Substitute compatibility should be verified for your specific system.
What is the NSN for HB178/4-1?
HB178/4-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 7920-00-246-8501. 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: September 2026