| MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | |
| DISCONTINUED W/O REPLACEMENT | |
| 8540.89.0020 | |
| ADVANCED AIR TRAFFIC CONTR. & LAND. SYS (ATCALS) 404L,HELICOPTER, SEA KNIGHT H-46,HELICOPTER, CH-53 D/E,TA-4J AIRCRAFT,COMMON SYSTEMS | |
| PENTODE |
