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 5998-00-834-7122
NSN 6130-00-812-6175
NSN 6110-01-239-1786
NSN 5999-01-445-0370
NSN 5985-01-601-0801
NSN 5950-01-205-0491
NSN 6110-00-473-2101
NSN 5935-00-402-4157
NSN 6135-00-613-1068
NSN 5990-01-412-9020
NSN 5999-01-186-2630
NSN 5996-01-076-1662