pin down with fire

arming pin; safety pin

firing pin retaining pin

track pin retaining pin

belt-feed pawl pin / belt feed pawl pin

pin down

pin down enemy aircraft

pin down enemy reserves

tie down / tie-down

cargo tie-down / freight tie-down

freight tie-down / cargo tie-down

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

pin-fire ammunition

call a halt down fire

call down fire

bring down fire

lay down fire

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

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

firing pin

pin

piston pin

pivot pin

safety-pin ring

sear pin

pin assembly

axle-tree retaining bolt locking pin

blade retaining pin

bolt handle spring retaining pin

cap retaining pin

cap retaining pin bushing

cap retaining pin bushing assembly

cap retaining pin screw