PartsTable
Technical Data Sheet

HB178/4-1 — BRUSH,WIRE,SCRATCH

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

HB178/4-1: BRUSH,WIRE,SCRATCH.

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 part is cataloged in the U.S.

Government catalog 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 — Brooms, Brushes, Mops, and Sponges
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 PART MATERIAL: STEEL
•
BLOCK LENGTH: 7.000 INCHES MINIMUM AND 7.500 INCHES MAXIMUM IN
•
BRUSH MATERIAL EXPOSED LENGTH: 1.625 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN
•
BLOCK WIDTH: 2.250 INCHES MINIMUM AND 2.375 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: BLOCK HANDLE STRAIGHT RECTANGULAR FACE
•
BRUSH ROW QUANTITY ALONG LENGTH: 19
•
BRUSH ROW QUANTITY ALONG WIDTH: 6
TECHNICAL CHARACTERISTICS
BRUSH PART MATERIALSTEEL
BLOCK LENGTH7.000 INCHES MINIMUM AND 7.500 INCHES MAXIMUM IN
BRUSH MATERIAL EXPOSED LENGTH1.625 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN
BLOCK WIDTH2.250 INCHES MINIMUM AND 2.375 INCHES MAXIMUM IN
STYLE DESIGNATORBLOCK HANDLE STRAIGHT RECTANGULAR FACE
BRUSH ROW QUANTITY ALONG LENGTH19
BRUSH ROW QUANTITY ALONG WIDTH6
SUBSTITUTES & CROSS-REFERENCES 3
A-A-3119Reference document
Same NSN cross-reference
Reference document — Secondary reference
H-B-178Reference document
Same NSN cross-reference
Reference document — Secondary reference
AA3119/1Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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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 3 known substitutes for HB178/4-1: A-A-3119, H-B-178, AA3119/1. Substitute compatibility should be verified for your specific system.
What is the NSN for HB178/4-1?
HB178/4-1 is cataloged in the U.S. Government catalog under NSN 7920-00-246-8501. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.