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 5855-01-603-0502
NSN 6320-00-894-1644
NSN 5990-01-443-2931
NSN 6145-01-080-1456
NSN 6105-01-197-7687
NSN 6645-01-074-8024
NSN 5915-00-358-2407
NSN 5960-01-331-3817
NSN 5945-01-088-4902
NSN 6610-00-572-1284
NSN 6320-01-435-5991
NSN 5996-01-495-8978