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 5999-01-345-8558
NSN 6240-00-839-7440
NSN 5965-01-420-6613
NSN 5975-01-008-6886
NSN 6685-01-545-4053
NSN 5950-01-462-2229
NSN 5985-00-293-8322
NSN 6150-01-370-0504
NSN 5960-01-355-2968
NSN 6610-00-277-7206
NSN 6145-00-907-1095
NSN 5999-01-509-2434