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| 28P19155 | U1725 | MINISTRY OF DEFENCE AIR DOMESTIC R FERENCE NUMBER USE ONLY |
| DEFSTAN53-10 | K0851 | MINISTRY OF DEFENCE DIRECTORATE OF STANDARDIZATION STAN 1 |
| 9519012 | K6179 | ANDREWS SYKES HIRE LTD |
| E12 | K7766 | BRITISH STANDARDS INSTITUTION |
| 63-10-2346-024 | U1921 | SIMON GLOSTER SARO LTD |
| SP90 | K7766 | BRITISH STANDARDS INSTITUTION |
| SP90-E12 | K7766 | BRITISH STANDARDS INSTITUTION |
| SP90E12 | K7766 | BRITISH STANDARDS INSTITUTION |
| SP90E12 | U1899 | DANA OVERSEAS TRADING DIVISION |