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 5925-01-483-1170
NSN 6240-01-461-4429
NSN 6145-01-313-8678
NSN 6105-01-528-8297
NSN 5920-01-634-0250
NSN 5920-01-323-2209
NSN 5905-01-441-1153
NSN 5855-01-448-9794
NSN 5996-01-012-1924
NSN 6105-01-105-0042
NSN 5990-01-177-2838
NSN 5960-00-077-1828