check valve

check valve / non-return valve

non-return valve / check valve

spot check (spot- check)

ball check valve

brake vacuum check valve

baffle check valve

metering check valve

orifice check valve

swing check valve

actuator deceleration vent check valve

check sweeping

function check

maintenance check

radio check

routine check

security check

vehicle check-point

fleet operational readiness accuracy check sites (FORACS)

loalty check

NATO Naval Forces Sensors and Weapons Accuracy Check Sites

pre-combat check (PCC)

pre-execution check (inspection)

cross-check procedure (CCP)

rammer check lever

background check

check adjusting range

check fire

check for eavesdropping devices

check for listening devices

check for logical inconsistency

check for tightness

check lever