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 5990-01-357-6175
NSN 5999-01-207-9095
NSN 6610-01-354-7963
NSN 5895-01-223-5953
NSN 5996-01-436-8215
NSN 5985-01-601-4475
NSN 5998-01-483-1426
NSN 6145-00-873-4808
NSN 5985-01-415-3516
NSN 6240-00-836-4980
NSN 5975-01-199-9927
NSN 6110-01-229-9880