STRI - syst
- submachine carbine
- submachinegun
- submachinegun expert
- submachinegun sharpshooter
- submachinegun unqualified
- SUBMACOM
- submarine
- submarine acceleration and velocity system
- Submarine Allied Command, Atlantic
- submarine area frequency plan
- submarine broadcast coordinator
- submarine combat control system
- submarine defense identification zone
- submarine element coordinator
- submarine exercise area
- submarine exercise area coordinator
- submarine fire control system
- submarine forces
- submarine integrated combat system
- submarine laser communications (program)
- submarine laser communications receiver
- submarine laser communications satellite
- submarine laser communications satellite system
- submarine launched ASW two-way expendable (buoy)
- submarine movement advisory authority
- submarine notice
- submarine operating and danger areas
- submarine overhaul and update program
- submarine patrol
- submarine patrol area
- submarine patrol zone
- submarine safety (program)
- submarine safety lane
- submarine satellite information exchange system
- submarine scout
- submarine search attack unit
- submarine signal simulator
- submarine sonar adaptive processor
- submarine sonar calibration set
- submarine tactical data link
