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 7035-00-104-5506
NSN 5930-00-365-4817
NSN 6145-00-945-0615
NSN 5895-00-257-5945
NSN 5925-01-370-0955
NSN 6685-01-415-4625
NSN 6135-01-034-5202
NSN 5975-00-565-1071
NSN 5990-00-242-3754
NSN 5835-01-013-9321
NSN 5999-01-486-9395
NSN 6240-01-143-4812