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National Stock Number:
5977-00-242-1369
Federal Supply Class:
5977
National Item Identification Number:
002421369
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.
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Manufacturer Information:
| A7-157 | 12287 | MERSEN CANADA DN LTD | | A7-157 | 17472 | EATON AEROSPACE LLC | | M-A7-157 | 18783 | MIRAJ CORP | | A7-157 | 72121 | EATON MOTOR SITE | | A7-157 | 78488 | STACKPOLE CORP THE |
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Techincal Specification:
| BODY STYLE | RECTANGULAR COMMUTATOR | | CONTACT FACE STYLE | CONCAVE | | LENGTH | 0.781 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | CARBONE GRADE 43D MFR REF SINGLE MATERIAL RESPONSE | | MATERIAL | ELECTROGRAPHITIC | | OUTER EDGE TO SLOT EDGE DISTANCE | 0.484 INCHES NOMINAL | | RADIUS | 0.922 INCHES NOMINAL | | SHUNT INSULATION PROVISION AND QUANTITY | 2 UNINSULATED | | SHUNT POSITION DESIGNATOR | 8 | | SLOT DEPTH | 0.156 INCHES NOMINAL | | SLOT WIDTH | 0.156 INCHES NOMINAL | | SPECIAL FEATURES | TOP LEFT @AND RIGHT EDGE BEVELED 45.0 DEG | | STYLE DESIGNATOR | ONE PIECE | | WIDTH | 1.121 INCHES MINIMUM AND 1.125 INCHES MAXIMUM | | TERMINAL HOLE DIAMETER | 0.144 INCHES NOMINAL | | TERMINAL TYPE AND QUANTITY | 1 TUBULAR W/HOLE | | THICKNESS | 0.308 INCHES MINIMUM AND 0.312 INCHES MAXIMUM | | TOP STYLE | FLAT WITH RECTANGULAR SLOT |
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