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 5935-01-417-2648
NSN 6610-01-459-8629
NSN 5999-00-682-3525
NSN 5985-01-558-7550
NSN 6145-00-001-8271
NSN 5985-00-222-9037
NSN 5905-00-176-2695
NSN 5965-01-605-0090
NSN 6105-00-465-2785
NSN 5990-00-539-7859
NSN 5930-01-181-9329
NSN 6150-01-433-8350