CHQDCoupling Half Quick Disconnect
References in periodicals archive ?
New facepieces have the new CHQD already installed.
They will teach CBRN specialists how to replace the glued-on CHQD without damaging the facepiece, plus check your unit's masks for problems.
While you wait for the MWO to be done or for a new facepiece to arrive, it's OK to continue to use a mask with the old CHQD as long as it passes the drinking system function test in Para 2-9 in TM 3-4240-346-20&P.