An item designed to automatically relieve vacuum, by the intake of air, when the internal pressure falls below atmospheric pressure. See also valve, vacuum regulating.
Classification: Other taps, cocks, valves, etc., nesoi
NSN 6620-01-090-3803
NSN 6320-00-405-2348
NSN 5935-01-401-5324
NSN 6650-01-386-1300
NSN 6650-00-416-2953
NSN 5998-01-645-8618
NSN 2925-00-896-7318
NSN 6320-01-343-8191
NSN 5985-01-534-9915
NSN 5920-00-336-2475
NSN 5960-01-539-1956
NSN 6320-00-701-0437