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 6110-01-515-0420
NSN 7035-01-145-5059
NSN 5985-01-059-3805
NSN 5855-00-221-9435
NSN 6320-01-056-1164
NSN 5950-01-279-5550
NSN 5930-01-261-4815
NSN 6240-01-651-6892
NSN 6620-00-811-7614
NSN 6105-01-146-0158
NSN 6145-00-942-4661
NSN 5835-00-779-2836