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 5925-00-135-0208
NSN 4140-01-428-9426
NSN 6150-01-529-6756
NSN 7035-00-286-6221
NSN 6610-01-319-5039
NSN 5935-01-095-7954
NSN 5930-00-802-9195
NSN 5985-00-331-4761
NSN 5925-01-395-1496
NSN 6150-01-607-9730
NSN 5985-00-233-7284
NSN 6105-01-212-9245