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 6240-00-840-8142
NSN 5895-01-603-6469
NSN 6620-01-076-1340
NSN 5930-01-276-0583
NSN 5960-01-202-6610
NSN 5920-01-571-6230
NSN 4140-01-055-6355
NSN 6220-01-277-5812
NSN 7035-01-265-2301
NSN 5855-01-433-2220
NSN 4140-01-046-1530
NSN 5996-00-583-0607