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80-311291 — BRUSH,ELECTRICAL CONTACT

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

80-311291: BRUSH,ELECTRICAL CONTACT.

The BRUSH,ELECTRICAL CONTACT is a the manufacturer industrial component. Key specifications include width: 1.246 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN, length: 1.250 INCHES NOMINAL IN, radius: 1.094 INCHES NOMINAL IN, material: ELECTROGRAPHITIC, thickness: 0.307 INCHES MINIMUM AND 0.311 INCHES MAXIMUM IN, top_style: FLAT. This part is cataloged in the U.S.

Government catalog under NSN 5977-01-170-2603, 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
80-311291
NSN: 5977-01-170-2603
FSC: 5977 — Electrical Contact Brushes and Electrodes
CAGE: 28118 — HELWIG CARBON PRODUCTS INC (USA)
SPECIFICATIONS
width1.246 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN
length1.250 INCHES NOMINAL IN
radius1.094 INCHES NOMINAL IN
materialELECTROGRAPHITIC
thickness0.307 INCHES MINIMUM AND 0.311 INCHES MAXIMUM IN
top_styleFLAT
body_styleRECTANGULAR COMMUTATOR
style_designatorONE PIECE
brush_shunt_length2.750 INCHES NOMINAL ALL SHUNTS IN
contact_face_styleCONCAVE
terminal_slot_width0.198 INCHES NOMINAL IN
shunt_position_designator1
NSN5977-01-170-2603
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BRUSH,ELECTRICAL CONTACT TITLE COMPONENT PN 80-311291 MFR BRUSH,ELECTRICAL CONTA
KEY FEATURES
•
LENGTH: 1.250 INCHES NOMINAL IN
•
BODY STYLE: RECTANGULAR COMMUTATOR
•
RADIUS: 1.094 INCHES NOMINAL IN
•
TERMINAL SLOT WIDTH: 0.198 INCHES NOMINAL IN
•
TOP STYLE: FLAT
•
SHUNT POSITION DESIGNATOR: 1
•
STYLE DESIGNATOR: ONE PIECE
•
MATERIAL DOCUMENT AND CLASSIFICATION: HELWIG CARBON GRADE 633 MFR REF SINGLE MATERIAL RESPONSE
TECHNICAL CHARACTERISTICS
LENGTH1.250 INCHES NOMINAL IN
BODY STYLERECTANGULAR COMMUTATOR
RADIUS1.094 INCHES NOMINAL IN
TERMINAL SLOT WIDTH0.198 INCHES NOMINAL IN
TOP STYLEFLAT
SHUNT POSITION DESIGNATOR1
STYLE DESIGNATORONE PIECE
MATERIAL DOCUMENT AND CLASSIFICATIONHELWIG CARBON GRADE 633 MFR REF SINGLE MATERIAL RESPONSE
BRUSH SHUNT LENGTH2.750 INCHES NOMINAL ALL SHUNTS 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 1
YP00433Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 80-311291?
80-311291 is a BRUSH,ELECTRICAL CONTACT.
What parts can replace 80-311291?
There is 1 known substitute for 80-311291: YP00433. Substitute compatibility should be verified for your specific system.
What is the NSN for 80-311291?
80-311291 is cataloged in the U.S. Government catalog under NSN 5977-01-170-2603. 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.