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 6145-01-424-0354
NSN 6110-00-248-2942
NSN 5999-00-313-0148
NSN 5975-00-950-7144
NSN 5930-00-422-5645
NSN 5999-01-272-8950
NSN 5965-01-568-4103
NSN 6320-00-546-9249
NSN 5990-01-531-5962
NSN 6220-01-367-6411
NSN 5895-01-196-5948
NSN 5975-00-503-9190