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 6145-01-137-4473
NSN 5975-00-636-4910
NSN 5910-01-417-8916
NSN 5999-01-209-0356
NSN 5985-01-176-6721
NSN 5996-00-081-0787
NSN 5935-01-449-2982
NSN 4140-01-444-4190
NSN 5925-01-033-6964
NSN 7035-00-267-5424
NSN 6145-01-257-7784
NSN 5895-00-490-5988