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 6610-00-365-4454
NSN 5985-01-433-2283
NSN 6685-01-604-8780
NSN 5960-01-632-6576
NSN 6620-01-091-9697
NSN 6130-00-151-5001
NSN 5835-00-427-2772
NSN 6105-01-372-3369
NSN 5935-01-213-9427
NSN 5990-01-341-5735
NSN 2925-01-136-2551
NSN 5975-01-048-6188