| PSC | Description
|
| 1005 | Guns through 30 mm |
| 1010 | Guns over 30 mm up to 75 mm |
| 1015 | Guns 75 mm through 125 mm |
| 1020 | Guns over 125 mm through 150 mm |
| 1025 | Guns over 150 mm through 200 mm |
| 1030 | Guns over 200 mm through 300 mm |
| 1035 | Guns over 300 mm |
| 1040 | Chemical Weapons and Equipment |
| 1045 | Launchers, Torpedo and Depth Charge |
| 1055 | Launchers, Grenades, Rockets and Pyrotechnic |
| 1070 | Nets and Booms Ordnance |
| 1075 | Degaussing and Mine Sweeping Equipmen |
| 1080 | Camouflage and Deception Equipment |
| 1090 | Assemblies Interchangeable Between Weapons in Two or More Classes |
| 1095 | Miscellaneous Weapons |