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The Peterson mandrel guide washer is a 1-inch ID spacer with a 3.250-inch outside diameter and 0.125-inch thickness, machined from billet aluminum. It functions as a mandrel guide or step washer for forming or spacing applications, offering consistent geometry and a durable machined finish for shop and fabrication use daily.
Peterson Fluid Systems Mandrel Washer 3.2 OD 1 x .125
