5977-00-238-9142 BRUSH,ELECTRICAL CONTACT Index 5977-00-238-9147 BRUSH,ELECTRICAL CONTACT

National Stock Number:
5977-00-238-9145

Federal Supply Class:
5977

National Item Identification Number:
002389145

Description:
BRUSH,ELECTRICAL CONTACT

Detail:
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.


Manufacturer Information:
7613555P21179500WESTINGHOUSE ELECTRIC CORP
N28543P2072241CETRON ELECTRONICS DIV RICHARDSON ELECTRONICS LTD
N30144P2114237CONTINENTAL ELECTRIC CO INC
N30144P217H468CONTINENTAL ELECTRIC MOTORS INC.


Techincal Specification:
BODY STYLERECTANGULAR
BRUSH SHUNT LENGTH2.750 INCHES NOMINAL SINGLE SHUNT
CONTACT FACE STYLEFLAT
LENGTH1.125 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-B-3743,GR A MIL SPEC SINGLE MATERIAL RESPONSE
MATERIALELECTROGRAPHITIC
SHUNT INSULATION PROVISION AND QUANTITY1 UNINSULATED
STYLE DESIGNATORPAIRED
WIDTH0.250 INCHES NOMINAL
TERMINAL TYPE AND QUANTITY1 TUBULAR W/HOLE
THICKNESS0.250 INCHES NOMINAL


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