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 5950-00-362-0644
NSN 6610-00-421-9853
NSN 6645-01-058-2473
NSN 6150-00-964-6267
NSN 6645-01-218-5234
NSN 5960-01-149-1261
NSN 5930-01-480-8624
NSN 6110-00-296-0500
NSN 5999-01-318-3396
NSN 5855-01-073-7255
NSN 5960-00-519-6954
NSN 5895-01-130-1614