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 5930-00-584-4563
NSN 4140-01-521-4577
NSN 5925-00-336-9150
NSN 5915-01-256-0986
NSN 6105-00-264-0355
NSN 5998-00-008-3640
NSN 5999-01-562-4964
NSN 6220-01-463-6068
NSN 6240-00-209-1883
NSN 5999-01-141-6859
NSN 5985-01-052-0785
NSN 5998-00-899-5669