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 5905-01-392-2159
NSN 5960-01-503-4123
NSN 6145-01-456-8069
NSN 6135-00-548-2765
NSN 5910-00-811-2459
NSN 6645-00-968-6118
NSN 6645-01-398-2505
NSN 5835-00-257-2852
NSN 6610-01-477-4179
NSN 5999-00-146-3758
NSN 5930-00-802-3874
NSN 5945-00-240-0103