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 6645-01-367-2581
NSN 5895-01-634-0630
NSN 6145-01-545-6348
NSN 5950-01-145-4510
NSN 5998-00-816-9752
NSN 6240-00-827-0889
NSN 6220-00-524-6447
NSN 5999-01-659-7024
NSN 6130-01-221-4444
NSN 6135-01-026-9960
NSN 5835-00-763-2938
NSN 6620-00-621-6951