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 6320-00-284-1524
NSN 6240-01-536-7662
NSN 6320-00-831-2227
NSN 5895-00-408-0398
NSN 5999-01-634-0576
NSN 7035-00-763-6180
NSN 6110-01-117-5900
NSN 6685-00-726-8146
NSN 6645-00-935-7046
NSN 5895-00-554-4573
NSN 5965-00-023-0944
NSN 5965-01-250-8542