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 6685-01-328-4012
NSN 5950-00-381-8549
NSN 5999-00-071-5058
NSN 5920-01-540-3428
NSN 5910-01-284-6843
NSN 5999-01-152-2313
NSN 5965-01-307-8301
NSN 6220-01-141-8200
NSN 6105-01-187-5164
NSN 5945-01-441-9370
NSN 5965-01-375-5238
NSN 5925-00-203-1278