FSC 1240 Optical Sighting and Ranging Equipment

Includes Periscopes for Submarines; Range and Height Finders; Telescopic Sights; Optical Instruments Integrated with Fire Control Equipment.

FSC 1270 Aircraft Gunnery Fire Control Components

Includes Turrets, Aircraft; Computers, specifically designed; Complete Gyro Mechanisms.

Excludes Gun Chargers; Ammunition Boxes; Gun Heaters; Field and Link Chutes; Ammunition Boosters; Gyro Components; Complete Fire Control Systems.

FSC 1285 Fire Control Radar Equipment, except Airborne

Includes Radar Sets, Assemblies, Subassemblies, and Components Specially Designed for use on or with Fire Control Equipment.

FSC 1230 Fire Control Systems, Complete

FSC 1260 Fire Control Designating and Indicating Equipment

Includes Turret, Gun, Torpedo Mount, and Searchlight Indicating Equipment; Target Designating Equipment; Synchro Systems.

FSC 1220 Fire Control Computing Sights and Devices

FSC 1265 Fire Control Transmitting and Receiving Equipment, except Airborne

Includes Fire Control Transmitters, Transmitter-Receivers, Receivers, Receiver-Regulators.

Excludes Fire Control Transmitting and Receiving Equipment, Specially Designed for use on or with Fire Control Radar Equipment.

FSC 1280 Aircraft Bombing Fire Control Components

Includes Computers, specifically designed; Complete Gyro Mechanisms; Optical Instruments for Bombing Fire Control.

Excludes Gyro Components; Optical Elements, such as Lens, Prisms, Filters.

FSC 1290 Miscellaneous Fire Control Equipment

Includes Fuze Setters; Ordnance Cable Systems; Aiming Circles; Flash and Sound Ranging Sets; Fire Control Components and Subassemblies Not Classifiable in Other Classes of Group 12.

FSC 1250 Fire Control Stabilizing Mechanisms

FSC 1210 Fire Control Directors

FSC 1287 Fire Control Sonar Equipment