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 5999-00-518-0462
NSN 5950-01-582-3029
NSN 6110-01-074-5677
NSN 6320-01-329-2297
NSN 6110-01-461-2631
NSN 5990-01-431-3725
NSN 5925-00-529-0441
NSN 5950-00-026-8468
NSN 2925-01-283-6740
NSN 5990-01-307-4489
NSN 6220-00-306-1806
NSN 6685-01-592-3099