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 5920-00-336-9055
NSN 5990-01-164-8673
NSN 6650-01-590-3670
NSN 6220-01-270-9885
NSN 5996-00-810-5687
NSN 5985-01-569-8315
NSN 5950-01-651-8384
NSN 5915-01-288-5165
NSN 6645-01-564-8610
NSN 6645-00-376-4829
NSN 5925-01-200-2714
NSN 5915-01-447-3151