NSN 5977-00-249-4278

Part Details | ELECTRICAL CONTACT BRUSH

5977-00-249-4278 An item specifically designed to be used in the transfer of electrical energy to or from another conducting surface. Either the brush or the surface is continually moving during the transfer of energy. The brush is usually composed in part of some form of the element carbon. Includes: (1) a single brush either with or without an attached shunt (flexible wire lead) and/or a helical or flat type pressure spring; (2) a split brush composed of two or more pieces (wafers), which are used in place of one brush usually connected together by individual shunts to a common terminal; (3) paired brushes composed of two identical or non-identical brushes connected together by a common shunt either with or without pressure springs or connected by individual shunts to a common terminal, or with pressure springs and connected to a common bar, bracket or the like either with or without individual shunts; (4) multiple brushes composed of more than two identical or non-identical brushes without pressure springs connected by individual shunts to a common terminal, or with pressure springs and connected to a common bar, bracket or the like by individual shunts. Does not include moving contacts which make and slide past stationary contacts, but are stationary while the circuit is conducting, such as the sliding contacts on a rheostat or the stationary contact on a synchro. Excludes: CONTACT, ELECTRICAL; and CONTACT ASSEMBLY, ELECTRICAL.

Alternate Parts: 5310371500501, 53-103-715-00-501, ANSINEMA PUB NO. CB1, ANSI/NEMA PUB NO. CB1, 5977-00-249-4278, 00-249-4278, 5977002494278, 002494278

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
59JAN 01, 196300-249-427800302 ( BRUSH, ELECTRICAL CONTACT )
REFERENCE DRAWINGS & PICTURES

RECTANGULAR COMMUTATOR

FLAT

CONCAVE

ONE PIECE

Cross Reference | NSN 5977-00-249-4278
Part Number Cage Code Manufacturer
53-103-715-00-50168256CARBONE OF AMERICA CORPORATIONDIV SUPERIOR CARBON PRODUCTS
ANSI/NEMA PUB NO. CB181705NATIONAL ELECTRICAL MFRS ASSN
Technical Data | NSN 5977-00-249-4278
Characteristic Specifications
STYLE DESIGNATOR ONE PIECE
MATERIAL COPPER GRAPHITE
MATERIAL DOCUMENT AND CLASSIFICATIONSUPERIOR CARBON PRODUCTS INC. GRADE MG44N MFR REF SINGLE MATERIAL RESPONSE
BODY STYLE RECTANGULAR COMMUTATOR
WIDTH0.813 INCHES NOMINAL
THICKNESS0.625 INCHES NOMINAL
LENGTH1.000 INCHES NOMINAL
CONTACT FACE STYLE CONCAVE
RADIUS1.438 INCHES NOMINAL
TOP STYLE FLAT
SHUNT INSULATION PROVISION AND QUANTITY2 UNINSULATED
SHUNT POSITION DESIGNATORA2$$A8
TERMINAL TYPE AND QUANTITY1 TUBULAR W/HOLE
TERMINAL HOLE DIAMETER0.203 INCHES NOMINAL
SPECIAL FEATURESSHUNTS BANDED TOGETHER 0.500 IN. FROM TOP OF BRUSH
CRITICALITY CODE JUSTIFICATIONAMATT$$AMDCL