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 5999-01-447-3153
NSN 5950-01-324-4311
NSN 6145-00-437-4673
NSN 6240-00-347-7118
NSN 5930-00-471-7045
NSN 6130-01-184-2480
NSN 6240-01-521-7867
NSN 6110-00-594-7640
NSN 5990-00-959-3312
NSN 5985-01-069-2495
NSN 5945-01-110-9308
NSN 5935-01-271-1452