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 6685-01-486-8904
NSN 5920-00-824-4131
NSN 5950-00-803-8025
NSN 6150-01-233-0966
NSN 5905-01-429-0372
NSN 6645-01-529-8822
NSN 6110-01-470-0680
NSN 6110-00-525-3418
NSN 6220-01-461-2499
NSN 6610-00-019-1538
NSN 5895-01-004-3537
NSN 5835-01-321-7895