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 6620-01-068-4498
NSN 5920-01-029-4538
NSN 5945-01-088-8071
NSN 6620-01-241-9088
NSN 5960-01-100-4454
NSN 6650-00-496-8762
NSN 5895-01-170-6715
NSN 6135-01-426-8282
NSN 5935-01-384-2621
NSN 5835-01-045-6371
NSN 5930-00-489-5067
NSN 5895-00-278-5194