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 6320-00-082-5868
NSN 4140-01-372-8925
NSN 6620-01-083-4672
NSN 5960-01-106-7367
NSN 5835-01-171-5368
NSN 6685-01-529-6504
NSN 6130-01-519-7586
NSN 5915-01-278-1687
NSN 5960-01-185-4216
NSN 5960-01-478-9493
NSN 5975-00-087-9415
NSN 4140-00-373-4833