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 6620-00-270-3275
NSN 5985-01-388-0156
NSN 5930-01-478-9048
NSN 5960-01-346-6002
NSN 5835-00-813-1724
NSN 5905-00-987-7437
NSN 5998-00-427-9071
NSN 6220-01-128-0087
NSN 4140-01-392-2107
NSN 6240-01-342-9694
NSN 5975-01-519-2519
NSN 5895-00-997-4698