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 2925-01-389-6874
NSN 6145-01-530-5996
NSN 5895-01-596-9082
NSN 6220-01-479-1931
NSN 5999-00-176-7864
NSN 5920-00-981-5821
NSN 5975-01-051-7434
NSN 6105-00-840-5522
NSN 5905-01-525-7734
NSN 5935-01-131-0387
NSN 5990-00-309-0023
NSN 6150-01-091-0492