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 5985-01-620-1705
NSN 6645-01-462-2101
NSN 5910-00-224-5823
NSN 6105-01-257-9233
NSN 2925-00-701-9991
NSN 5985-01-437-4146
NSN 5925-01-266-1093
NSN 6150-01-389-9584
NSN 6650-01-230-5155
NSN 5965-01-368-6740
NSN 5990-01-229-3003
NSN 6240-01-424-0980