5355-00-552-1253 DIAL,SCALE Index 5998-00-552-1258 PRINTED WIRING BOARD

National Stock Number:
5977-00-552-1257

Federal Supply Class:
5977

National Item Identification Number:
005521257

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:
19-946-10375377KURZ & ROOT GENERATOR COMPANY, LLC
ANSI/NEMA PUB N0. CB181705NATIONAL ELECTRICAL MFRS ASSN
ANSI/NEMA PUB NO. CB181705NATIONAL ELECTRICAL MFRS ASSN
JHP13-32302032HOLLINGSWORTH JOHN R CO
PA50290AHP6NATIONAL ELECTRICAL CARBON PRODUCTS, INC.
PA502982214UNION CARBIDE CORP ELECTRONIC SPECIALTY PRODUCTS GROUP
RC16-240682214UNION CARBIDE CORP ELECTRONIC SPECIALTY PRODUCTS GROUP


Techincal Specification:
BODY STYLERECTANGULAR COMMUTATOR
BRUSH SHUNT LENGTH2.375 INCHES NOMINAL SINGLE SHUNT
CONTACT FACE STYLECONCAVE
LENGTH1.125 INCHES NOMINAL
OUTER EDGE TO SLOT EDGE DISTANCE0.203 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONUNION CARBIDE CORP,GR CO-3913 MFR REF SINGLE MATERIAL RESPONSE
MATERIALMETAL GRAPHITE
RADIUS1.500 INCHES NOMINAL
SHUNT INSULATION PROVISION AND QUANTITY1 UNINSULATED
SHUNT POSITION DESIGNATOR8
SLOT DEPTH0.063 INCHES NOMINAL
SLOT WIDTH0.344 INCHES NOMINAL
SPECIAL FEATURESS7 TYPE TERMINAL PER INDUSTRIAL ASSN STD,NEMA PUB CB1-1961
WIDTH0.750 INCHES NOMINAL
STYLE DESIGNATORONE PIECE
TERMINAL TYPE AND QUANTITY1 STRAIGHT W/SLOT
THICKNESS0.500 INCHES NOMINAL
TOP STYLEFLAT WITH RECTANGULAR SLOT


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