NSN 5977-01-020-4220

Part Details | ELECTRICAL CONTACT BRUSH

5977-01-020-4220 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: BYLM2580004, BYLM258-0-0-04, BYLM258, 5977-01-020-4220, 01-020-4220, 5977010204220, 010204220

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
59APR 30, 197601-020-422000302 ( BRUSH, ELECTRICAL CONTACT )
REFERENCE DRAWINGS & PICTURES

RECTANGULAR COMMUTATOR

CYLINDRICAL HEAD

CONVEX

ONE PIECE

Cross Reference | NSN 5977-01-020-4220
Part Number Cage Code Manufacturer
BYLM258-0-0-0405624GE AVIATION SYSTEMS LLCDBA GE AVIATION
BYLM25805624GE AVIATION SYSTEMS LLCDBA GE AVIATION
Technical Data | NSN 5977-01-020-4220
Characteristic Specifications
STYLE DESIGNATOR ONE PIECE
BODY STYLE RECTANGULAR COMMUTATOR
CONTACT FACE STYLE CONVEX
RADIUS0.300 INCHES NOMINAL
TOP STYLE CYLINDRICAL HEAD
SHUNT INSULATION PROVISION AND QUANTITY1 UNINSULATED
SHUNT POSITION DESIGNATOR5
PRESSURE SPRING TYPE AND QUANTITY1 CYLINDRICAL
SPRING FREE LENGTH0.688 INCHES NOMINAL
LARGEST OUTSIDE DIAMETER0.185 INCHES NOMINAL