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 6685-01-499-1534
NSN 5910-01-296-4750
NSN 5925-01-339-6540
NSN 6110-00-643-0234
NSN 6650-01-105-2825
NSN 6135-00-874-6566
NSN 6135-00-643-4843
NSN 6645-00-779-5355
NSN 5950-01-365-1119
NSN 6240-00-432-1901
NSN 5835-00-050-4330
NSN 5960-01-433-3928