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 5965-01-262-1722
NSN 6240-00-204-0459
NSN 5835-01-223-1790
NSN 6610-00-186-9180
NSN 5920-01-139-1221
NSN 5950-00-394-1546
NSN 6650-01-219-3731
NSN 6150-01-503-0255
NSN 5895-00-504-0578
NSN 5835-00-339-3020
NSN 5999-00-237-5062
NSN 5999-00-179-6935