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 5835-01-537-1228
NSN 5930-01-326-2828
NSN 5895-00-351-7463
NSN 6650-00-299-9681
NSN 5975-01-344-2409
NSN 5920-01-210-2300
NSN 6685-01-243-1265
NSN 5985-01-487-7128
NSN 4140-00-322-0599
NSN 5990-01-364-8405
NSN 6105-01-485-0842
NSN 6130-01-604-5138