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 5895-00-060-8987
NSN 6110-00-244-0427
NSN 5910-00-037-7550
NSN 5950-01-422-2704
NSN 6130-00-175-8066
NSN 5920-01-197-4143
NSN 5975-00-149-7647
NSN 5999-01-487-4515
NSN 5945-01-141-5454
NSN 6685-00-933-3598
NSN 5910-00-761-7258
NSN 5990-00-985-1334