A mechanical device designed to permit a free flow of air into and out of an enclosure, usually used on engine crankcase, vehicular differentials and transmissions, pumps, compressors, and the like. see also cap, vent, fuel storage tank. excludes ventalator (as modified).
Classification: Pressure-reducing valves, pneumatic fluid power type, filter-regulators and filter-regulator-lubricators
NSN 4140-01-055-6355
NSN 5975-01-629-9934
NSN 6240-00-476-1228
NSN 6105-00-099-8818
NSN 6685-01-477-3890
NSN 5930-00-773-3445
NSN 6685-00-595-5376
NSN 6620-00-863-4639
NSN 5996-01-569-6049
NSN 5999-01-359-4934
NSN 6650-00-849-9689
NSN 5930-01-425-6403