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 6685-00-087-6925
NSN 5996-01-289-9937
NSN 7035-00-267-5424
NSN 5999-01-231-9354
NSN 5975-01-387-7627
NSN 5835-00-092-1136
NSN 5935-01-088-3437
NSN 5950-01-583-9877
NSN 6150-01-452-0708
NSN 6220-01-278-9369
NSN 5925-01-656-4950
NSN 6110-00-663-4054