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 5965-01-229-0786
NSN 5960-00-337-7628
NSN 6105-00-544-0624
NSN 5965-01-342-2865
NSN 6620-00-753-0745
NSN 5910-01-261-5321
NSN 6685-01-619-5626
NSN 6105-01-115-8688
NSN 5990-01-408-6554
NSN 4140-01-089-7213
NSN 5910-01-390-5172
NSN 6610-01-012-0517