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 6220-01-123-7796
NSN 5985-00-146-2450
NSN 5935-00-196-1288
NSN 6620-00-596-1951
NSN 5895-01-534-7779
NSN 5996-00-972-3097
NSN 5925-00-529-3950
NSN 6150-00-244-2258
NSN 6135-01-111-1495
NSN 5905-01-599-9827
NSN 6220-01-505-9880
NSN 6220-01-320-9490