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 5945-00-521-4847
NSN 6645-01-385-7033
NSN 7035-01-166-7857
NSN 7035-01-056-1302
NSN 5835-01-209-6410
NSN 4140-00-820-1173
NSN 6130-01-160-6610
NSN 6645-01-494-3845
NSN 5930-01-562-2949
NSN 5965-01-431-8147
NSN 5985-01-643-6388
NSN 6240-00-170-5302