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 6320-01-017-5274
NSN 5925-01-291-4020
NSN 6130-01-426-6859
NSN 5925-01-353-7911
NSN 5930-01-381-1335
NSN 4140-00-225-8586
NSN 6645-01-311-0492
NSN 5985-01-159-2434
NSN 6610-01-262-2273
NSN 5960-00-703-3208
NSN 2925-01-426-3410
NSN 6610-01-207-0045