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 5930-01-581-6399
NSN 5895-01-609-7068
NSN 7035-01-388-6943
NSN 5930-01-474-3056
NSN 5935-01-319-1200
NSN 6150-01-515-4976
NSN 6685-01-600-0433
NSN 5905-00-815-1350
NSN 5950-01-457-7492
NSN 6620-01-263-6697
NSN 5925-01-312-8746
NSN 5935-00-511-3291