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 6240-01-394-8592
NSN 5930-01-025-0658
NSN 6150-01-197-8116
NSN 6130-00-505-0194
NSN 5895-01-094-0763
NSN 5950-01-046-0387
NSN 5935-01-373-2725
NSN 5975-01-157-9432
NSN 5996-01-511-1220
NSN 5925-01-033-0457
NSN 6620-01-633-8443
NSN 6320-00-823-2015