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 5975-01-286-9038
NSN 5985-00-961-4620
NSN 5999-01-657-0455
NSN 2925-01-327-3069
NSN 5930-01-395-1548
NSN 6150-00-972-8063
NSN 4140-01-549-2409
NSN 5925-01-526-6181
NSN 5945-01-069-0923
NSN 5855-01-466-0632
NSN 6135-00-686-4777
NSN 5990-00-389-0554