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 4140-00-209-2231
NSN 5905-00-928-3115
NSN 6135-00-683-0536
NSN 6220-00-724-6191
NSN 5930-01-238-2907
NSN 5960-01-528-1147
NSN 6105-00-275-0826
NSN 6610-01-112-2924
NSN 5905-01-418-5125
NSN 6220-01-633-8634
NSN 5920-00-840-3570
NSN 6150-00-602-7812