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 6240-00-427-7448
NSN 6145-00-686-5397
NSN 5835-01-460-0582
NSN 6685-01-407-6445
NSN 6240-00-215-8550
NSN 6645-01-346-4505
NSN 7035-01-358-8361
NSN 5996-00-490-8392
NSN 5950-00-362-5661
NSN 5945-00-375-6131
NSN 6610-00-877-5905
NSN 5910-00-900-4641