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 5915-00-393-1850
NSN 5998-01-444-8136
NSN 5835-01-264-8782
NSN 5945-01-334-2636
NSN 5910-00-817-3954
NSN 6135-01-408-9244
NSN 6135-00-935-8769
NSN 5950-01-433-1116
NSN 5930-00-876-2512
NSN 6220-01-216-3407
NSN 6105-01-263-8425
NSN 6650-00-273-8732