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 5960-00-081-1937
NSN 6610-00-497-3801
NSN 5935-01-258-4752
NSN 6610-01-168-7943
NSN 5985-00-247-8595
NSN 4140-01-377-5828
NSN 6150-01-463-2369
NSN 5905-01-294-3865
NSN 6645-01-435-8356
NSN 5855-01-398-9548
NSN 5915-00-301-3818
NSN 6620-01-580-9746