Part Number
Definition:
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.
CAGE Information
| Code | Company |
|---|---|
| 28118 | HELWIG CARBON PRODUCTS INC. |
Federal Supply Class
Title
ELECTRICAL CONTACT BRUSHES AND E
Inclusions:
INCLUDES BRUSHES FOR ELECTRICAL ROTATING EQUIPMENT; CARBON STOCK FOR BRUSHES; BRUSH ARM AND HOLDERS; LIGHTING ELECTRODES.
Exclusions:
EXCLUDES ANODES; CATHODES; WELDING ELECTRODES.
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AABU | SHUNT POSITION DESIGNATOR | 13 |
| AABU | SHUNT POSITION DESIGNATOR | 13 |
| ABRY | LENGTH | 2.000 INCHES NOMINAL |
| MATT | MATERIAL | METAL GRAPHITE |
| CRBG | SHUNT INSULATION PROVISION AND QUANTITY | 1 UNINSULATED |
| CRMK | ANGLE | 30.0 DEGREES NOMINAL |
| CQGT | CONTACT FACE STYLE | CONCAVE |
| ABNM | THICKNESS | 0.746 INCHES MINIMUM AND 0.750 INCHES MAXIMUM |
| TTQY | TERMINAL TYPE AND QUANTITY | 1 STRAIGHT W/HOLE |
| AHXQ | TERMINAL HOLE DIAMETER | 0.344 INCHES NOMINAL |
| AAQL | BODY STYLE | RECTANGULAR COMMUTATOR |
| STYL | STYLE DESIGNATOR | ONE PIECE |
| BTHR | TOP STYLE | BEVELED FRONT |
| FEAT | SPECIAL FEATURES | BEVELED EDGE LOCATION FRONT |
| ABGG | RADIUS | 2.280 INCHES NOMINAL |
| ABGL | WIDTH | 0.860 INCHES MINIMUM AND 0.875 INCHES MAXIMUM |
| AHXP | BRUSH SHUNT LENGTH | 4.000 INCHES NOMINAL SINGLE SHUNT |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | NATIONAL CARBON CO,GR 549 MFR REF SINGLE MATERIAL RESPONSE |