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 6650-01-419-7567
NSN 5960-01-022-1718
NSN 5990-01-604-0862
NSN 5920-01-431-9364
NSN 6135-01-265-1384
NSN 5990-00-711-9890
NSN 5985-00-824-5528
NSN 5965-01-394-8660
NSN 5990-00-726-0029
NSN 6320-01-046-5228
NSN 5998-00-081-8208
NSN 6240-00-280-8502