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 5905-00-419-0189
NSN 6145-00-985-3284
NSN 5930-01-508-4074
NSN 6150-01-447-2249
NSN 6610-01-224-3814
NSN 6110-01-148-9067
NSN 5930-01-462-2400
NSN 5998-00-110-2327
NSN 5925-00-660-7589
NSN 6150-01-605-1563
NSN 5835-00-454-7239
NSN 5975-01-406-4249