| 2936 | 74545 | HUBBELL INC WIRING DEVICE DIV |
| 390-4 | 75582 | LEVITON MANUFACTURING CO., INC. |
| 78-354 | 24446 | GENERAL ELECTRIC COMPANY |
| 78X354 | 24446 | GENERAL ELECTRIC COMPANY |
| 4300 | 71183 | BRYANT ELECTRIC |
| 4300 | 79500 | WESTINGHOUSE ELECTRIC CORP |
| 9200A | 73586 | CIRCLE F INDUSTRIES |
| UL542 | 81345 | UNDERWRITERS LABORATORIES INC |
| MILL19037TYPE6 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |