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 5930-00-083-6273
NSN 5835-01-461-8184
NSN 5835-01-226-2337
NSN 5915-01-417-6979
NSN 2925-01-482-8202
NSN 5950-01-275-9484
NSN 5950-01-291-3256
NSN 5990-00-189-6649
NSN 5935-01-424-0692
NSN 6145-01-541-6137
NSN 5855-00-688-9954
NSN 2925-00-035-5633