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 5990-01-541-5632
NSN 5950-00-727-2688
NSN 5930-01-330-8697
NSN 6105-00-146-1568
NSN 6150-01-406-3431
NSN 6130-01-024-9060
NSN 5960-01-380-0106
NSN 5990-00-929-8923
NSN 6105-01-501-5992
NSN 6220-01-344-9707
NSN 6610-01-564-4084
NSN 5960-01-658-9538