Aeronautical Standard AN919 Reducers
These Aeronautical Standard AN919 reducers are external thread flared reducers, for use with AN818 nuts with corresponding dash number. We have them available in steel and aluminum alloy. See the chart to see the various part numbers, materials and small and large outer diameter measurements. The AN919-12D reducer has a large outer diameter of .5 inches, a small outer diameter of .375 inches and is made from aluminum alloy. The stainless steel AN919-15J reducer has a large outer diameter of .375 inches and a small outer diameter of .5 inches. These reducers are made in the U.S.
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