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 5950-00-557-6783
NSN 6685-01-390-6257
NSN 5915-01-144-1125
NSN 5855-00-821-7512
NSN 2925-00-139-0720
NSN 5930-01-223-4871
NSN 5975-00-583-8625
NSN 6320-01-362-9518
NSN 2925-00-909-2596
NSN 6320-01-501-7935
NSN 5985-01-380-9768
NSN 6110-00-269-2696