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 5996-00-201-8861
NSN 6240-01-492-5045
NSN 6240-00-512-3473
NSN 6650-01-311-9009
NSN 5930-01-469-6480
NSN 5975-00-186-8884
NSN 6645-01-400-1137
NSN 6610-01-214-6680
NSN 5925-01-139-9972
NSN 6220-01-444-0945
NSN 6105-01-422-1835
NSN 6650-01-529-6721