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 2925-01-316-0725
NSN 5835-01-647-6426
NSN 5925-00-311-2341
NSN 5960-01-553-4557
NSN 6650-01-003-2925
NSN 6645-01-092-4733
NSN 5990-01-529-7307
NSN 5915-01-217-9849
NSN 6150-01-357-1379
NSN 6685-01-202-4050
NSN 5905-01-336-3790
NSN 6145-01-136-4622