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 6130-01-600-0509
NSN 5920-00-431-5474
NSN 6150-00-056-3093
NSN 5920-01-235-0704
NSN 5996-01-166-8416
NSN 5935-01-511-0932
NSN 6130-00-580-0901
NSN 5935-01-104-5619
NSN 6130-01-411-9914
NSN 2925-01-364-7926
NSN 5950-01-039-1103
NSN 6620-01-650-5226