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 5985-01-621-1551
NSN 6110-00-974-2046
NSN 7035-01-599-9287
NSN 6105-01-224-7258
NSN 5975-00-500-0166
NSN 5935-00-529-7568
NSN 6220-01-111-2073
NSN 6320-01-103-6218
NSN 5915-01-577-4016
NSN 6610-01-380-6374
NSN 4140-01-516-8995
NSN 4140-01-554-7484