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 5965-00-275-0491
NSN 5998-01-461-9558
NSN 5950-01-421-4138
NSN 2925-01-602-8709
NSN 6610-01-193-2169
NSN 6110-01-416-6743
NSN 4140-01-572-1748
NSN 5999-01-502-8775
NSN 5950-00-202-5861
NSN 5999-01-140-3198
NSN 5975-01-508-3504
NSN 5990-00-296-4825