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 5935-01-464-1801
NSN 5905-01-086-2714
NSN 5950-01-528-7982
NSN 5945-00-655-1708
NSN 6610-01-229-3679
NSN 5935-01-544-8970
NSN 5835-00-550-7735
NSN 7035-01-604-7698
NSN 5930-00-863-8067
NSN 6105-00-116-0066
NSN 5910-01-119-6909
NSN 2925-01-218-5556