| ASCC17-27C-020 | 99237 | AIRFORCE-NAVY AERONAUTICAL DESIGN STANDARD |
| BS1806-020 | K7766 | BRITISH STANDARDS INSTITUTION |
| HTE7300N5-020 | K2617 | HIGH TEMPERATURE ENGINEERS LTD |
| BSM48-020 | K7766 | BRITISH STANDARDS INSTITUTION |
| HTE7300N5-020 | U1918 | MISSION SYSTEMS WIMBORNE LIMITED |
| HTE7300N5-020 | U9084 | EATON AEROSPACE LTD |