| PSC | Description |
|---|---|
| 1610 | Aircraft propellers |
| 1615 | Helicopter rotor blades-drive mech |
| 1620 | Aircraft landing gear components |
| 1630 | Aircraft wheel & brake systems |
| 1650 | Aircraft hydraulic vacuum de-icing |
| 1660 | Aircraft air condition heating eq |
| 1670 | Parachute recover sys & tie down eq |
| 1680 | Miscl aircraft accessories comps |