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 6145-01-144-5728
NSN 5950-01-014-6610
NSN 5996-01-024-9976
NSN 6135-01-645-4653
NSN 5920-00-185-6664
NSN 5985-01-266-1721
NSN 5905-00-953-1852
NSN 6110-01-388-2958
NSN 5990-00-192-1753
NSN 5905-01-081-2185
NSN 6320-01-407-4411
NSN 5945-01-653-7070