5977-00-644-2909 BRUSH,ELECTRICAL CONTACT Index 5977-00-644-2913 BRUSH,ELECTRICAL CONTACT

National Stock Number:
5977-00-644-2910

Federal Supply Class:
5977

National Item Identification Number:
006442910

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:
ANSI/NEMA PUB N0. CB181705NATIONAL ELECTRICAL MFRS ASSN
ANSI/NEMA PUB NO. CB181705NATIONAL ELECTRICAL MFRS ASSN
EG7788SA4538151REGAL BELOIT AMERICA, INC.
MILB00374381349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SP5300238151REGAL BELOIT AMERICA, INC.
SP5300295402ELECTRIC BOAT CORP DBA ELECTRO DYNAMIC
SP5300296169ELECTRIC BOAT CORPORATION
SP53002CL195402ELECTRIC BOAT CORP DBA ELECTRO DYNAMIC
SP53002CL196169ELECTRIC BOAT CORPORATION


Techincal Specification:
ANGLE40.0 DEGREES NOMINAL
BEVEL ANGLE30.0 DEGREES NOMINAL
BODY STYLERECTANGULAR COMMUTATOR
BRUSH SHUNT LENGTH4.750 INCHES NOMINAL SINGLE SHUNT
CONTACT FACE STYLEBEVELED
CRITICALITY CODE JUSTIFICATIONMATT AND MDCL
LENGTH1.750 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONSPEER CARBON CO,GRADE E23 MFR REF SINGLE MATERIAL RESPONSE
MATERIALELECTROGRAPHITIC
SHUNT INSULATION PROVISION AND QUANTITY1 UNINSULATED
SHUNT POSITION DESIGNATOR12
PERIPHERAL SPEED5000 FEET PER MINUTE
WIDTH1.250 INCHES NOMINAL
STYLE DESIGNATORONE PIECE
TERMINAL SLOT WIDTH0.344 INCHES NOMINAL
TERMINAL TYPE AND QUANTITY1 STRAIGHT W/SLOT
THICKNESS0.625 INCHES NOMINAL
TOP STYLEBEVELED FRONT WITH LEFT SHOULDER


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