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EE781M1 — BRUSH,ELECTRICAL CONTACT

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

EE781M1: BRUSH,ELECTRICAL CONTACT.

The BRUSH,ELECTRICAL CONTACT is a the manufacturer industrial component. Key specifications include width: 0.250 INCHES NOMINAL IN, length: 0.563 INCHES NOMINAL IN, radius: 0.563 INCHES NOMINAL IN, material: ELECTROGRAPHITIC, thickness: 0.250 INCHES NOMINAL IN, top_style: CYLINDRICAL HEAD. This part is cataloged in the U.S.

Government catalog under NSN 5977-00-178-8155, 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
EE781M1
NSN: 5977-00-178-8155
FSC: 5977 — Electrical Contact Brushes and Electrodes
CAGE: 28298 — SMITH AND SMITH AIRCRAFT CO (USA)
SPECIFICATIONS
width0.250 INCHES NOMINAL IN
length0.563 INCHES NOMINAL IN
radius0.563 INCHES NOMINAL IN
materialELECTROGRAPHITIC
thickness0.250 INCHES NOMINAL IN
top_styleCYLINDRICAL HEAD
body_styleRECTANGULAR COMMUTATOR
head_length0.125 INCHES NOMINAL IN
head_diameter0.188 INCHES NOMINAL IN
style_designatorONE PIECE
brush_shunt_length1.500 INCHES NOMINAL SINGLE SHUNT IN
contact_face_styleCONCAVE
NSN5977-00-178-8155
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BRUSH,ELECTRICAL CONTACT TITLE COMPONENT PN EE781M1 MFR BRUSH,ELECTRICAL CONTA
KEY FEATURES
•
LENGTH: 0.563 INCHES NOMINAL IN
•
LARGEST OUTSIDE DIAMETER: 0.156 INCHES NOMINAL IN
•
BODY STYLE: RECTANGULAR COMMUTATOR
•
RADIUS: 0.563 INCHES NOMINAL IN
•
TOP STYLE: CYLINDRICAL HEAD
•
SHUNT POSITION DESIGNATOR: 5
•
STYLE DESIGNATOR: ONE PIECE
•
MATERIAL DOCUMENT AND CLASSIFICATION: MORGANITE INC,GR EG11 MFR REF SINGLE MATERIAL RESPONSE
TECHNICAL CHARACTERISTICS
LENGTH0.563 INCHES NOMINAL IN
LARGEST OUTSIDE DIAMETER0.156 INCHES NOMINAL IN
BODY STYLERECTANGULAR COMMUTATOR
RADIUS0.563 INCHES NOMINAL IN
TOP STYLECYLINDRICAL HEAD
SHUNT POSITION DESIGNATOR5
STYLE DESIGNATORONE PIECE
MATERIAL DOCUMENT AND CLASSIFICATIONMORGANITE INC,GR EG11 MFR REF SINGLE MATERIAL RESPONSE
SPRING FREE LENGTH1.250 INCHES NOMINAL IN
PRESSURE SPRING TYPE AND QUANTITY1 CYLINDRICAL
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
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FREQUENTLY ASKED QUESTIONS
What is EE781M1?
EE781M1 is a BRUSH,ELECTRICAL CONTACT.
What is the NSN for EE781M1?
EE781M1 is cataloged in the U.S. Government catalog under NSN 5977-00-178-8155. 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.