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 5975-01-033-6578
NSN 5950-01-599-6610
NSN 6610-01-170-2905
NSN 5915-01-608-1921
NSN 6220-01-137-2848
NSN 5855-01-534-7940
NSN 5895-01-063-3437
NSN 6145-01-419-9108
NSN 5998-00-112-4956
NSN 6240-01-026-0032
NSN 6110-01-296-5039
NSN 6145-01-429-3108