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 6645-01-391-9477
NSN 6240-00-758-6392
NSN 5996-01-449-3662
NSN 5999-01-280-9242
NSN 5935-01-419-3554
NSN 6620-01-343-1625
NSN 6610-01-633-8931
NSN 5935-01-280-5457
NSN 6320-00-450-7014
NSN 5920-01-013-3883
NSN 6240-01-320-1308
NSN 5910-00-936-6537