| 30-232-233-33 | K0481 | SMITHS INDUSTRIES LTD |
| 30-232-233-33 | K5294 | GE AVIATION SYSTEMS LIMITED |
| 31000423 | K5728 | G E C MARCONI AVIONICS LTD |
| BS57 | K7766 | BRITISH STANDARDS INSTITUTION |
| 6A10619 | U1725 | MINISTRY OF DEFENCE AIR DOMESTIC R FERENCE NUMBER USE ONLY |
| 6A12310 | U1725 | MINISTRY OF DEFENCE AIR DOMESTIC R FERENCE NUMBER USE ONLY |
| CH1005A | K0481 | SMITHS INDUSTRIES LTD |
| CH1005A | K5294 | GE AVIATION SYSTEMS LIMITED |
| BS57-TABLE 1 | K7766 | BRITISH STANDARDS INSTITUTION |