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 6650-00-341-4176
NSN 6130-00-985-4996
NSN 6620-00-518-3595
NSN 5965-01-381-2998
NSN 5950-00-810-0512
NSN 6645-01-105-2239
NSN 5945-00-433-0294
NSN 5990-01-395-4194
NSN 5950-01-351-9480
NSN 5930-00-042-5728
NSN 5998-01-097-2497
NSN 5965-01-142-1807