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 5935-00-900-2751
NSN 6645-00-551-8291
NSN 5985-00-938-4980
NSN 6685-01-440-8749
NSN 6645-01-458-8379
NSN 5996-01-319-8315
NSN 5975-01-565-8687
NSN 5920-00-185-9587
NSN 6105-00-333-3360
NSN 6150-01-123-7612
NSN 6620-01-407-5619
NSN 5835-01-476-8210