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 6220-01-295-4222
NSN 5905-01-101-4990
NSN 6645-01-019-8662
NSN 5925-01-241-2698
NSN 5920-01-177-3761
NSN 6150-01-543-8574
NSN 5855-00-951-6483
NSN 5855-01-040-3882
NSN 6135-01-512-8740
NSN 5945-01-242-9430
NSN 6220-00-334-7008
NSN 5950-01-556-7010