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 6110-01-318-6537
NSN 4140-01-634-0330
NSN 6610-00-156-5699
NSN 6685-01-231-6753
NSN 6220-00-595-6954
NSN 5996-01-363-1106
NSN 6685-00-869-9478
NSN 7035-01-424-7019
NSN 5990-00-978-4936
NSN 5855-01-469-6123
NSN 5835-01-110-0697
NSN 2925-01-633-4048