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TF-28440-1 — BRUSH,ELECTRICAL CONTACT

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

TF-28440-1: BRUSH,ELECTRICAL CONTACT.

The BRUSH,ELECTRICAL CONTACT is a the manufacturer industrial component. Key specifications include width: 0.621 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN, length: 0.750 INCHES NOMINAL IN, radius: 0.781 INCHES NOMINAL IN, material: ELECTROGRAPHITIC, thickness: 0.246 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN, top_style: FLAT WITH LEFT EDGE BEVELED. This part is cataloged in the U.S.

Government catalog under NSN 5977-00-028-4160, 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
TF-28440-1
NSN: 5977-00-028-4160
FSC: 5977 — Electrical Contact Brushes and Electrodes
CAGE: 59875 — EATON CORP DBA EATON AEROSPACE JACKSON (USA)
SPECIFICATIONS
width0.621 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
length0.750 INCHES NOMINAL IN
radius0.781 INCHES NOMINAL IN
materialELECTROGRAPHITIC
thickness0.246 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
top_styleFLAT WITH LEFT EDGE BEVELED
body_styleRECTANGULAR COMMUTATOR
bevel_depth0.125 INCHES NOMINAL IN
bevel_length0.125 INCHES NOMINAL IN
style_designatorONE PIECE
brush_shunt_length1.438 INCHES NOMINAL ALL SHUNTS IN
contact_face_styleCONCAVE
NSN5977-00-028-4160
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BRUSH,ELECTRICAL CONTACT TITLE COMPONENT PN TF-28440-1 MFR BRUSH,ELECTRICAL CONTA
KEY FEATURES
•
LENGTH: 0.750 INCHES NOMINAL IN
•
BODY STYLE: RECTANGULAR COMMUTATOR
•
RADIUS: 0.781 INCHES NOMINAL IN
•
TERMINAL SLOT WIDTH: 0.187 INCHES NOMINAL IN
•
TOP STYLE: FLAT WITH LEFT EDGE BEVELED
•
SHUNT POSITION DESIGNATOR: 8
•
STYLE DESIGNATOR: ONE PIECE
•
BEVEL DEPTH: 0.125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
LENGTH0.750 INCHES NOMINAL IN
BODY STYLERECTANGULAR COMMUTATOR
RADIUS0.781 INCHES NOMINAL IN
TERMINAL SLOT WIDTH0.187 INCHES NOMINAL IN
TOP STYLEFLAT WITH LEFT EDGE BEVELED
SHUNT POSITION DESIGNATOR8
STYLE DESIGNATORONE PIECE
BEVEL DEPTH0.125 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONSTACKPOLE CARBON CO GRADE WAB MFR REF SINGLE MATERIAL RESPONSE
BRUSH SHUNT LENGTH1.438 INCHES NOMINAL ALL SHUNTS IN
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
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is TF-28440-1?
TF-28440-1 is a BRUSH,ELECTRICAL CONTACT.
What is the NSN for TF-28440-1?
TF-28440-1 is cataloged in the U.S. Government catalog under NSN 5977-00-028-4160. 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.