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 5935-01-003-8602
NSN 5985-00-284-7604
NSN 6150-00-935-8740
NSN 6135-00-231-7257
NSN 5998-01-010-3217
NSN 6650-01-430-9416
NSN 5990-00-153-0055
NSN 2925-00-516-8841
NSN 6650-01-187-5937
NSN 6150-01-485-0864
NSN 5975-00-131-3495
NSN 5935-00-583-8366