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 6105-01-280-4779
NSN 4140-00-640-6608
NSN 5950-01-202-6249
NSN 6620-01-600-0479
NSN 5915-00-952-2320
NSN 5835-01-026-0670
NSN 5990-01-483-7313
NSN 6320-01-102-0799
NSN 5990-00-269-2226
NSN 5935-00-765-6392
NSN 5895-01-351-4909
NSN 5950-00-284-7294