firing-lever axis pin

pitch axis / transverse axis / lateral axis

firing-lever spindle actuating lever

firing pin retaining pin

firing point / firing pin

setting angle of the longitudinal axis with respect to the aircraft axis

belt feed lever pivot spring / belt-feed lever pivot spring

flap slat CTL lever / flap and slat control lever

axis pin

clutch release lever pin

arming pin; safety pin

track pin retaining pin

belt-feed pawl pin / belt feed pawl pin

firing trigger lever

firing pin

impression of firing pin

inertia firing pin

knob of firing pin

firing pin piece of a rifle

firing pin safety

firing pin spring

firing-pin guide

firing-pin impression

firing-pin rear

firing-pin stop

fixed firing pin

lug of firing pin

firing-pin lock

firing-pin mechanism

firing position / firing attitude

firing limit / firing cycles limit

axis (мн. axes)

axis of advance