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 6105-00-834-0169
NSN 6320-01-265-0665
NSN 6610-01-514-3683
NSN 6610-00-664-2190
NSN 6610-01-278-9704
NSN 5905-00-218-1237
NSN 5998-01-525-7620
NSN 6650-00-933-8744
NSN 5960-01-046-4884
NSN 6645-01-089-6459
NSN 5950-00-294-4919
NSN 5930-00-183-6594