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 5996-01-098-3465
NSN 6130-01-088-7779
NSN 6145-01-528-9655
NSN 5975-00-169-6415
NSN 6130-00-516-9343
NSN 5915-01-516-4259
NSN 5910-01-657-1235
NSN 4140-01-527-7878
NSN 6240-01-457-7978
NSN 5905-00-391-6398
NSN 6610-01-542-9484
NSN 6610-00-557-3270