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 6610-00-991-7755
NSN 5990-00-401-6793
NSN 5910-01-597-2019
NSN 5935-01-107-8853
NSN 5990-01-430-9177
NSN 5999-01-444-1389
NSN 5985-00-247-2243
NSN 6145-01-214-5120
NSN 6110-00-104-8009
NSN 6130-01-441-8350
NSN 5935-01-025-0849
NSN 6150-01-591-7405