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 6145-00-900-2161
NSN 5990-00-344-2062
NSN 5835-01-615-8864
NSN 6650-01-266-8762
NSN 5985-00-526-3469
NSN 5920-01-120-6992
NSN 5925-01-154-6796
NSN 5975-01-437-5352
NSN 6620-00-912-9623
NSN 6240-01-512-1856
NSN 6150-01-424-4384
NSN 6145-00-085-7570