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 6320-00-164-4087
NSN 5895-00-233-7309
NSN 2925-00-564-5967
NSN 6105-01-026-8786
NSN 6130-00-179-9948
NSN 5895-01-041-2659
NSN 6650-01-252-5428
NSN 6145-01-178-3384
NSN 6610-01-517-8652
NSN 5950-00-579-2222
NSN 5835-01-580-0446
NSN 5930-01-602-0300