затравочний стрижень
water jacket plug / water-jacket plug
plug-and-play / plug-n-play (PNP)
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