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 6620-01-591-6681
NSN 6320-00-779-5923
NSN 6110-01-646-9245
NSN 6650-00-266-6808
NSN 5835-00-264-0946
NSN 6320-01-302-5157
NSN 7035-01-049-6776
NSN 5996-00-382-9296
NSN 5895-01-435-9248
NSN 7035-01-601-7936
NSN 5920-01-534-7042
NSN 5905-00-929-2542