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 6130-01-044-5059
NSN 5930-00-775-6793
NSN 6220-00-552-0667
NSN 6620-00-628-9304
NSN 6320-01-229-2264
NSN 5960-01-567-1096
NSN 6650-00-900-0049
NSN 6130-00-504-2956
NSN 6620-00-086-5223
NSN 5990-01-419-0661
NSN 5920-00-027-8290
NSN 6105-00-583-9958