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 5960-00-325-8529
NSN 6240-01-592-1261
NSN 6110-01-215-1702
NSN 6610-01-052-8029
NSN 5905-01-584-1185
NSN 6105-01-540-6031
NSN 5985-01-034-5314
NSN 5905-01-277-7047
NSN 6110-01-324-7909
NSN 6105-00-556-6333
NSN 2925-00-992-2566
NSN 6650-01-003-9355