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 6685-00-325-1527
NSN 6685-01-224-6405
NSN 6610-00-111-3648
NSN 5835-01-346-1386
NSN 5920-01-084-9892
NSN 6685-00-420-2781
NSN 6610-01-428-7779
NSN 6105-01-514-4447
NSN 6110-01-396-6087
NSN 5950-01-462-5878
NSN 5855-01-581-4629
NSN 5835-00-025-9951