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 5920-01-609-4080
NSN 5920-01-136-4709
NSN 5996-01-527-6488
NSN 6145-01-022-8220
NSN 6145-01-268-1939
NSN 6135-01-307-6006
NSN 6145-00-422-2644
NSN 5990-00-400-4794
NSN 6620-00-811-7614
NSN 5985-01-367-2842
NSN 6110-01-201-4251
NSN 5950-01-557-0106