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 5996-00-483-1893
NSN 5999-01-590-8127
NSN 5999-00-897-5908
NSN 5985-00-337-6819
NSN 6220-01-605-6609
NSN 6135-01-223-3869
NSN 5925-00-116-4888
NSN 5975-00-186-8884
NSN 5990-01-218-5160
NSN 6145-00-245-6645
NSN 6105-01-213-5811
NSN 5895-01-624-6972