5977-00-285-0025 BRUSH,ELECTRICAL CONTACT Index 5977-00-285-0028 BRUSH,ELECTRICAL CONTACT

National Stock Number:
5977-00-285-0027

Federal Supply Class:
5977

National Item Identification Number:
002850027

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:
9B982811083CATERPILLAR INC
DSK42-801843AMBAC INTERNATIONAL CORPORATION
DSK42-824956UNITED TECHNOLOGIES CORP ELECTRO SYSTEMS INC


Techincal Specification:
BODY STYLERECTANGULAR COMMUTATOR
BRUSH SHUNT LENGTH1.953 INCHES NOMINAL SINGLE SHUNT
CONTACT FACE STYLECONCAVE
LENGTH1.000 INCHES NOMINAL
OUTER EDGE TO SLOT EDGE DISTANCE0.434 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONHENRITE PRODUCTS CORP,GRADE 1307 MFR REF SINGLE MATERIAL RESPONSE
MATERIALCARBON
SHUNT INSULATION PROVISION AND QUANTITY2 INSULATED
SHUNT POSITION DESIGNATOR2 AND 8
SLOT WIDTH0.234 INCHES NOMINAL
SLOT DEPTH0.078 INCHES NOMINAL
RADIUS0.981 INCHES NOMINAL
TOP STYLEFLAT WITH RECTANGULAR SLOT
WIDTH1.102 INCHES NOMINAL
STYLE DESIGNATORONE PIECE
TERMINAL HOLE DIAMETER0.182 INCHES NOMINAL
TERMINAL TYPE AND QUANTITY1 FLAG W/HOLE
THICKNESS0.315 INCHES NOMINAL


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