| 49B7053 | 80049 | DEPARTMENT OF THE AIR FORCE |
| 49B7053 | 88041 | AIR CORPS STANDARDS UNDER CUSTODIANISHIP OF THE AIR FORCE |
| 49B7053A | 99238 | AIR FORCE STANDARD |
| B4897 | 08125 | U S DEPT OF TRANSPORTATION FEDERAL AVIATION ADMINISTRATION |
| B4897 | 81341 | FEDERAL AVIATION ADMINISTRATION |
| MS17815 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |