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 6620-00-266-2763
NSN 5920-01-085-8374
NSN 5855-01-203-4719
NSN 6320-00-483-0451
NSN 6145-01-226-1698
NSN 5915-01-408-5821
NSN 5990-01-014-1280
NSN 6220-01-357-7675
NSN 5996-01-103-9092
NSN 6105-00-553-8943
NSN 5965-00-577-1242
NSN 6150-01-157-8726