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 6610-01-034-0798
NSN 5855-01-433-2220
NSN 6240-01-444-0808
NSN 5925-01-391-9019
NSN 7035-00-803-3056
NSN 5935-01-248-3859
NSN 5950-01-469-9563
NSN 5945-01-411-9732
NSN 5920-00-811-4405
NSN 5998-01-532-0675
NSN 5985-00-778-2887
NSN 6105-01-472-2452