safety lock and fire selector

selector lever, fire selector, fire switch, fire selector switch

safety and arming device / safety-and-arming device

wheel lock pistol (wheellock / wheel-lock)

infrared lock (IR Lock)

fire selector switch

observation and fields of fire, avenues of approach, key and decisive terrain,obstacles, and cover and concealment (OAKOC)

slant fire; diagonal fire; oblique fire; fire to the oblique

fire control orders (FCO) ('Hold Fire', 'Cease Fire' and 'Engage')

rack selector

selector lever / switch

speed selector

arming range selector

fuel tank selector control

fuel tank selector valve

distributor octane selector vacuum line

job selector

piston-type selector valve

rotary selector valve

selector valve

spool-type selector valve

wind selector

omni-bearing selector (OBS)

fuel gauge selector

heading selector

indicated airspeed selector

weapon selector

selector

manual target selector

moving target selector

space target selector

target selector

target selector switch