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 6220-00-966-7528
NSN 5985-01-579-2192
NSN 6320-01-166-3602
NSN 6685-01-309-8360
NSN 7035-01-097-5054
NSN 5996-00-897-5040
NSN 5985-00-843-5050
NSN 6220-01-231-1766
NSN 4140-01-370-8758
NSN 5990-01-239-5878
NSN 6105-01-462-3628
NSN 6320-01-232-4664