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 5910-01-487-0658
NSN 5910-01-364-5191
NSN 6645-01-633-1852
NSN 5999-01-519-8595
NSN 6105-01-511-4056
NSN 5965-01-086-0081
NSN 5990-01-581-6871
NSN 5920-01-449-6048
NSN 5960-00-266-6741
NSN 5925-01-628-9948
NSN 5895-01-538-0596
NSN 5990-00-313-8688