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 5965-00-313-8958
NSN 6240-01-143-0397
NSN 5990-01-531-0487
NSN 5855-01-020-7982
NSN 6685-01-253-0793
NSN 6645-01-229-7749
NSN 5996-01-224-8906
NSN 6220-00-121-1885
NSN 5835-01-301-0022
NSN 6105-01-274-3570
NSN 2925-01-655-0562
NSN 6650-00-734-3985