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 2925-00-087-2465
NSN 6220-01-339-9973
NSN 6135-00-295-2614
NSN 7035-00-088-7355
NSN 5925-00-204-9759
NSN 5996-01-432-0117
NSN 5985-01-215-7110
NSN 5910-01-083-9159
NSN 6150-01-184-5707
NSN 5835-00-257-2852
NSN 5935-00-447-6069
NSN 5950-01-244-6846