NSN 5977-00-285-0939

Part Details | ELECTRICAL CONTACT BRUSH

5977-00-285-0939 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: A18C4428, A18C4428, A18C4428, 5977-00-285-0939, 00-285-0939, 5977002850939, 002850939

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
59JAN 01, 196300-285-093900302 ( BRUSH, ELECTRICAL CONTACT )
REFERENCE DRAWINGS & PICTURES

RECTANGULAR COMMUTATOR

BRUSH,ELECTRICAL CO | 5977-00-285-0939, 002850939

CYLINDRICAL HEAD

BRUSH,ELECTRICAL CO | 5977-00-285-0939, 002850939

CONCAVE

BRUSH,ELECTRICAL CO | 5977-00-285-0939, 002850939

ONE PIECE

BRUSH,ELECTRICAL CO | 5977-00-285-0939, 002850939
Cross Reference | NSN 5977-00-285-0939
Part Number Cage Code Manufacturer
A18C442899167HAMILTON SUNDSTRAND CORPORATION
A18C442883843SUNDSTRAND CORPELECTRIC POWER SYSTEMS DIV
A18C442879500WESTINGHOUSE ELECTRIC CORP
Technical Data | NSN 5977-00-285-0939
Characteristic Specifications
STYLE DESIGNATOR ONE PIECE
MATERIAL CARBON
MATERIAL DOCUMENT AND CLASSIFICATIONCARBONE GRADE 417BFG MFR REF SINGLE MATERIAL RESPONSE
BODY STYLE RECTANGULAR COMMUTATOR
WIDTH0.250 INCHES NOMINAL
THICKNESS0.188 INCHES NOMINAL
LENGTH0.438 INCHES NOMINAL
CONTACT FACE STYLE CONCAVE
RADIUS0.281 INCHES NOMINAL
TOP STYLE CYLINDRICAL HEAD
HEAD DIAMETER0.157 INCHES NOMINAL
HEAD LENGTH0.063 INCHES NOMINAL
SHUNT INSULATION PROVISION AND QUANTITY1 UNINSULATED
SHUNT POSITION DESIGNATOR5
PRESSURE SPRING TYPE AND QUANTITY1 CYLINDRICAL
SPRING FREE LENGTH0.754 INCHES NOMINAL
LARGEST OUTSIDE DIAMETER0.182 INCHES NOMINAL
TERMINAL TYPE AND QUANTITY1 ROUND CAP W/EARS
TERMINAL DIAMETER0.303 INCHES NOMINAL