A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.
NSN 6240-01-332-9214
NSN 5935-00-024-1060
NSN 5835-01-133-4197
NSN 5998-00-596-8869
NSN 6220-01-462-1479
NSN 6320-01-067-0474
NSN 7035-00-529-3128
NSN 6105-00-068-8689
NSN 5960-01-458-0774
NSN 7035-00-574-4223
NSN 5998-00-018-7684
NSN 6650-01-214-1710