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 5910-00-170-7170
NSN 5999-00-707-6083
NSN 5960-01-119-4609
NSN 6685-00-255-5109
NSN 6620-00-933-3640
NSN 6620-00-526-8996
NSN 5935-00-052-7791
NSN 5960-01-325-2241
NSN 6320-01-481-7322
NSN 5996-01-549-1157
NSN 6110-01-400-4207
NSN 6220-01-391-4492