5977-00-027-0151, BRUSH,ELECTRICAL CONTACT

National Stock Number:
5977-00-027-0151

Federal Supply Class:
5977

National Item Identification Number:
000270151

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:

10-125610-065-4-02	28118	HELWIG CARBON PRODUCTS INC
625A673AAG1	03511	GENERAL ELECTRIC CO SPECIALTY MOTOR DEPT

Techincal Specification:

BODY STYLE	RECTANGULAR COMMUTATOR
BRUSH SHUNT LENGTH	3.312 INCHES MINIMUM AND 3.438 INCHES MAXIMUM SINGLE SHUNT
CONTACT FACE STYLE	CONCAVE
LARGEST OUTSIDE DIAMETER	0.500 INCHES NOMINAL
LENGTH	0.944 INCHES MINIMUM AND 1.020 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION	HELWIG CARBON GRADE H621 MFR REF SINGLE MATERIAL RESPONSE
MATERIAL	GRAPHITE
PRESSURE SPRING TYPE AND QUANTITY	1 CYLINDRICAL
RADIUS	1.240 INCHES MINIMUM AND 1.310 INCHES MAXIMUM
SHOULDER HEIGHT	0.094 INCHES MINIMUM AND 0.110 INCHES MAXIMUM
SHUNT INSULATION PROVISION AND QUANTITY	1 UNINSULATED
SHUNT POSITION DESIGNATOR	5
SHOULDER WIDTH	0.098 INCHES MINIMUM AND 0.103 INCHES MAXIMUM
SPECIAL FEATURES	PRESSURE SPRING QUANTITY 1
SPRING FREE LENGTH	3.600 INCHES MINIMUM AND 3.850 INCHES MAXIMUM
WIDTH	0.558 INCHES MINIMUM AND 0.562 INCHES MAXIMUM
STYLE DESIGNATOR	ONE PIECE
TERMINAL DIAMETER	0.662 INCHES MINIMUM AND 0.682 INCHES MAXIMUM
TERMINAL TYPE AND QUANTITY	1 ROUND CAP
THICKNESS	0.121 INCHES MINIMUM AND 0.125 INCHES MAXIMUM

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