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 4140-00-552-7370
NSN 6150-01-112-6050
NSN 5920-01-083-0792
NSN 6685-01-475-4188
NSN 5999-00-740-8259
NSN 5930-00-482-6009
NSN 6135-00-351-8606
NSN 5985-00-394-5888
NSN 6620-00-950-5979
NSN 5935-00-226-6687
NSN 5999-01-277-3316
NSN 5975-00-945-3673