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 5945-01-197-9838
NSN 5975-01-650-0005
NSN 5895-01-108-5631
NSN 6650-00-202-4540
NSN 6610-00-667-6832
NSN 5985-01-460-8743
NSN 6135-01-428-7490
NSN 5895-01-356-4595
NSN 6130-01-607-6305
NSN 6610-00-256-8006
NSN 6150-01-379-2862
NSN 5925-01-455-6400