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 5998-01-576-8857
NSN 5855-01-519-2933
NSN 5950-01-473-1184
NSN 5998-01-090-0724
NSN 6150-01-141-7340
NSN 5999-01-275-2796
NSN 5910-01-600-1181
NSN 5925-01-067-8301
NSN 5935-01-287-2357
NSN 5960-00-274-4905
NSN 5960-01-654-4353
NSN 5895-01-205-4908