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 6620-01-574-6774
NSN 5998-01-100-3236
NSN 5996-01-456-7399
NSN 6130-00-335-9712
NSN 6610-01-451-1217
NSN 5990-01-548-3711
NSN 5920-01-129-9724
NSN 5960-01-112-8273
NSN 6610-01-562-0846
NSN 6610-01-282-6747
NSN 5925-01-067-8301
NSN 6135-00-756-6149