затравочний стрижень
water jacket plug / water-jacket plug
vent valve
HyFin Vent Chest Seal (HyfinSeal)
cartridge-case vent
cartridge-case vent punching machine
crankcase breather vent
vent pipe
vent tube
closed-vent circuit
fuel vent manifold
vent air inlet
vent outlet
actuator deceleration vent check valve
gas vent
vent
base plug
delay pellet plug
fill / plug the gap
gas plug
glow plug
igniter plug
plug
high-explosive point detonating nose plug
gas plug and tube assembly
base plug (of ammunition)
breech plug
bridge plug
cold plug
cylinder filler plug
evacuation plug
expansion plug snap ring
filling and drain plug