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 4140-00-794-2960
NSN 6240-01-044-5049
NSN 6130-01-491-1352
NSN 5895-01-564-5095
NSN 6645-01-451-1295
NSN 6620-00-060-6801
NSN 6130-00-461-1467
NSN 5925-01-554-7152
NSN 5945-00-492-3809
NSN 5990-01-462-9228
NSN 6320-01-610-4410
NSN 5895-01-024-9287