| 89 / | HD | ORDNANCE |
|
| 37.01 |  | MOUNTS {18} |
| 37.02 | DF | .~> Anti-aircraft |
| 37.03 | DF | .~> Light machine gun type |
| 37.04 | DF | .~> Rifle and pistol mounts |
| 37.05 | DF | .~> Mortars |
| 37.06 | DF | .~> Submarine |
| 37.07 | DF | .~> Trunnion |
| 37.08 | DF | .~> Counterbalances |
| 37.09 | DF | .~> Leveling |
| 37.11 | DF | .~> Locks |
| 37.12 | DF | .~> Spherical or oval bearing gun support |
| 37.13 | DF | .~> Bases |
| 37.14 | DF | .~> Reciprocating mounts |
| 37.15 | DF | .~> With body protecting devices |
| 37.16 | DF | .~> Aircraft type {5} |
| 38 | DF | .~> Disappearing gun {1} |
| 40.01 | DF | .~> For field use {14} |
| 41.01 | DF | .~> Training mechanisms {5} |
| 42.01 | DF | .~> With recoil check {4} |