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 5990-01-202-7003
NSN 5960-00-265-7576
NSN 5985-00-354-3295
NSN 6145-01-034-8201
NSN 5998-00-919-3910
NSN 6650-01-173-5651
NSN 5985-00-932-7628
NSN 6320-00-476-6898
NSN 6220-01-649-5291
NSN 6220-00-756-5772
NSN 6105-01-040-9677
NSN 6240-00-435-0433