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 6645-01-387-2063
NSN 6645-01-302-9608
NSN 6650-01-447-2858
NSN 5920-01-502-3177
NSN 5920-00-149-1469
NSN 5965-00-951-9961
NSN 5935-00-243-7464
NSN 5950-01-231-1283
NSN 5965-01-572-4551
NSN 2925-00-928-0045
NSN 5935-00-681-7996
NSN 5975-00-690-4509