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 5985-00-942-7882
NSN 6610-00-769-6826
NSN 6150-00-997-8790
NSN 5935-01-361-9200
NSN 5999-00-859-8349
NSN 6150-01-104-4323
NSN 5960-00-752-6175
NSN 4140-01-580-8573
NSN 5925-00-113-5066
NSN 6145-01-644-1709
NSN 5915-01-383-8282
NSN 5985-00-357-4591