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 6135-01-205-5965
NSN 5998-01-560-0341
NSN 6645-00-928-7208
NSN 5920-00-809-0972
NSN 6145-01-102-2825
NSN 6220-00-403-9021
NSN 5999-01-349-3652
NSN 5960-01-122-1101
NSN 5930-00-876-3811
NSN 6105-00-518-1854
NSN 5985-00-189-7138
NSN 6220-01-158-6556