5977-00-249-4273 BRUSH,ELECTRICAL CONTACT Index 5977-00-249-4278 BRUSH,ELECTRICAL CONTACT

National Stock Number:
5977-00-249-4274

Federal Supply Class:
5977

National Item Identification Number:
002494274

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:
1020718783MIRAJ CORP
53-601-069-00-50192392ALLIS-CHALMERS CORP
S1082426R2010AHP6NATIONAL ELECTRICAL CARBON PRODUCTS, INC.
ANSI/NEMA PUB N0. CB181705NATIONAL ELECTRICAL MFRS ASSN
ANSI/NEMA PUB NO. CB181705NATIONAL ELECTRICAL MFRS ASSN
S1082426R20182214UNION CARBIDE CORP ELECTRONIC SPECIALTY PRODUCTS GROUP


Techincal Specification:
STYLE DESIGNATORONE PIECE
MATERIALMETAL GRAPHITE
BODY STYLERECTANGULAR COMMUTATOR
MATERIAL DOCUMENT AND CLASSIFICATIONNATIONAL ELECTRIC CARBON GRADE 549 MFR REF SINGLE MATERIAL RESPONSE
WIDTH0.750 INCHES NOMINAL
THICKNESS0.250 INCHES NOMINAL
LENGTH0.813 INCHES NOMINAL
CONTACT FACE STYLEFLAT
TOP STYLEFLAT
SHUNT INSULATION PROVISION AND QUANTITY2 INSULATED
SHUNT POSITION DESIGNATOR2 AND
8
BRUSH SHUNT LENGTH1.438 INCHES NOMINAL ALL SHUNTS
TERMINAL TYPE AND QUANTITY1 FLAG W/HOLE
TERMINAL HOLE DIAMETER0.219 INCHES NOMINAL
SPECIAL FEATURESFLAG TERMINAL TURNED TOWARD BRUSH
PERIPHERAL SPEED6000 FEET PER MINUTE


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