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 6645-01-383-8139
NSN 5925-00-198-3689
NSN 5990-01-376-8930
NSN 5960-01-528-1147
NSN 6620-01-533-8251
NSN 6135-01-142-2417
NSN 6645-01-495-0939
NSN 7035-01-068-3300
NSN 5975-01-278-8480
NSN 5999-00-812-7501
NSN 6145-01-576-6575
NSN 5985-00-233-5773