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 5930-00-815-0619
NSN 5990-00-724-4375
NSN 5999-01-105-7069
NSN 5950-00-681-2996
NSN 6130-01-649-8820
NSN 5990-00-206-3753
NSN 5895-01-313-9455
NSN 5945-01-196-3485
NSN 5925-01-433-9512
NSN 5996-01-181-5438
NSN 6135-00-461-3590
NSN 4140-01-087-3336