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 5895-01-634-0630
NSN 6685-00-138-7250
NSN 5910-01-178-6230
NSN 5855-00-079-2370
NSN 6110-01-266-4245
NSN 5999-00-258-3053
NSN 6110-01-657-7789
NSN 5990-01-296-8190
NSN 5855-01-550-5219
NSN 5960-00-167-0397
NSN 5990-00-333-6210
NSN 5996-01-151-8720