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 6240-01-088-0389
NSN 5920-01-236-5397
NSN 5905-00-901-2926
NSN 6150-01-643-5679
NSN 7035-01-106-3476
NSN 5930-01-634-0659
NSN 5920-00-203-5938
NSN 6645-00-411-3733
NSN 5999-01-045-8475
NSN 6650-00-869-5760
NSN 5999-01-021-5673
NSN 5925-01-183-8337