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 6105-00-233-7312
NSN 5915-00-488-7437
NSN 6650-01-121-6904
NSN 6320-01-203-4303
NSN 6620-00-251-0569
NSN 5985-00-262-5109
NSN 6620-00-610-1272
NSN 5950-01-544-9065
NSN 6135-01-449-0625
NSN 5996-00-518-0460
NSN 6135-00-269-5843
NSN 5920-00-106-5751