PartsTable
Technical Data Sheet
Download PDF

4D8258-4 — BRUSH,ELECTRICAL CONTACT

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

4D8258-4: BRUSH,ELECTRICAL CONTACT.

The BRUSH,ELECTRICAL CONTACT is a the manufacturer industrial component. Key specifications include width: 0.498 INCHES NOMINAL IN, length: 1.125 INCHES NOMINAL IN, material: METAL GRAPHITE, thickness: 0.248 INCHES NOMINAL IN, top_style: CYLINDRICAL HEAD, head_length: 0.125 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5977-00-238-9178, 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
4D8258-4
NSN: 5977-00-238-9178
FSC: 5977 — Electrical Contact Brushes and Electrodes
CAGE: 79500 — WESTINGHOUSE ELECTRIC CORP (USA)
SPECIFICATIONS
width0.498 INCHES NOMINAL IN
length1.125 INCHES NOMINAL IN
materialMETAL GRAPHITE
thickness0.248 INCHES NOMINAL IN
top_styleCYLINDRICAL HEAD
head_length0.125 INCHES NOMINAL IN
special_featuresSHUNT TERMINAL,CAP TYPE WITH EAR/S/,DESIGNED FOR COMMUTATOR CONTACT SURFACE
style_designatorONE PIECE
brush_shunt_length2.312 INCHES NOMINAL SINGLE SHUNT IN
contact_face_styleCONCAVE
largest_outside_diameter0.375 INCHES NOMINAL IN
shunt_position_designator5
NSN5977-00-238-9178
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BRUSH,ELECTRICAL CONTACT TITLE COMPONENT PN 4D8258-4 MFR BRUSH,ELECTRICAL CONTA
KEY FEATURES
•
LENGTH: 1.125 INCHES NOMINAL IN
•
LARGEST OUTSIDE DIAMETER: 0.375 INCHES NOMINAL IN
•
TOP STYLE: CYLINDRICAL HEAD
•
SHUNT POSITION DESIGNATOR: 5
•
STYLE DESIGNATOR: ONE PIECE
•
MATERIAL DOCUMENT AND CLASSIFICATION: STACKPOLE CARBON CO,GR W687 MFR REF SINGLE MATERIAL RESPONSE
•
PRESSURE SPRING TYPE AND QUANTITY: 1 CYLINDRICAL
•
HEAD LENGTH: 0.125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
LENGTH1.125 INCHES NOMINAL IN
LARGEST OUTSIDE DIAMETER0.375 INCHES NOMINAL IN
TOP STYLECYLINDRICAL HEAD
SHUNT POSITION DESIGNATOR5
STYLE DESIGNATORONE PIECE
MATERIAL DOCUMENT AND CLASSIFICATIONSTACKPOLE CARBON CO,GR W687 MFR REF SINGLE MATERIAL RESPONSE
PRESSURE SPRING TYPE AND QUANTITY1 CYLINDRICAL
HEAD LENGTH0.125 INCHES NOMINAL IN
BRUSH SHUNT LENGTH2.312 INCHES NOMINAL SINGLE SHUNT IN
CONTACT FACE STYLECONCAVE
OTHER ITEMS IN FSC 5977 — Electrical Contact Brushes and Electrodes
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5977-00-001-8018 5977-00-001-8867 5977-00-002-9654 5977-00-003-0257 5977-00-003-0258 5977-00-003-0264 5977-00-003-1196 5977-00-003-1197
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy 4D8258-4?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 4D8258-4?
4D8258-4 is a BRUSH,ELECTRICAL CONTACT.
What is the NSN for 4D8258-4?
4D8258-4 is cataloged in the U.S. Government catalog under NSN 5977-00-238-9178. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 4D8258-4

✓ 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.