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 7035-01-012-8658
NSN 6105-00-738-6699
NSN 5960-00-615-9972
NSN 2925-01-009-9560
NSN 5920-01-167-8908
NSN 5990-01-632-0969
NSN 5998-01-540-7385
NSN 5920-00-421-6447
NSN 6320-00-456-2092
NSN 6620-01-531-3250
NSN 5925-00-251-3283
NSN 6105-01-024-7351