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 5925-01-421-5731
NSN 6135-00-315-1187
NSN 5925-00-078-2842
NSN 5835-01-502-9228
NSN 6610-01-085-0804
NSN 7035-01-421-4446
NSN 2925-01-191-9668
NSN 6135-01-602-8383
NSN 6240-00-028-9568
NSN 5950-01-194-8842
NSN 6240-00-583-3818
NSN 5935-01-439-9162