| 520-5409000 | 456A-1 Selective Calling System | IB | | 2/0 | 1958-03-15 |
| 520-5460000 | 51R-3 Navigation Receiver | IB | | 3/4 | 1965-05-01 |
| | 520-5520000 | 456C-1 Selective Calling System | IB | | 2/2 | 1966-03-15 |
| | 520-5543000 | 51Z-2/2A Marker Beacon Receiver | IB | | 7/5 | 1969-06-15 |
| 520-5598000 | 344B-1/1A Instrumentation Unit | IB | | 6/9 | 1975-11-15 |
| | 520-5828000 | 313N-6/6B/6C/6F/7 VHF Control (Installation and Repair) | IB | | 1/3 | 1966-03-15 |
| 520-5871000 | 477Y-1 VOR Test Amplifier | IB | | 2/0 | 1960-05-01 |
| | 520-5872000 | 331C-4, 331C-4A, 331C-4E, or 331C-4F Bearing-Distance-Heading Indicator | IB | | 2/0 | 1961-03-01 |
| 520-5915000 | 344D-1 VOR Instrumentation Unit | IB | | 1/2 | 1960-05-15 |
| | 520-5928000 | 479V-3 Universal Precision Selector | IB | | 6/0 | 1976-12-01 |