Water shutoff valve (type 420) from the LM Environmental Control System.
Packaged with a metal warning tag enclosed, stipulating the knob position for storage.
Crew could control the flow of drinking water supplied to a cabin port by turning the knob.
Valve body is machined aluminum; shaft is made of titanium.
0.21 lbs. (0.095 kg)
Historic Space Systems at www.space1.com
Lunar Module Artifacts