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 5985-00-789-8240
NSN 5975-01-148-6291
NSN 4140-01-020-1116
NSN 5990-01-101-7602
NSN 5945-01-607-0482
NSN 5915-01-215-6986
NSN 5895-01-332-8100
NSN 5999-01-073-8816
NSN 6620-00-416-4131
NSN 5985-01-447-0139
NSN 5925-01-327-2731
NSN 6135-01-386-5709