Standard Abrasives 840038, Quick Change Surface Conditioning GP Disc, A/O Medium, TSM, Maroon, 3/4 in, QS75KM, 7000121647, 50/case 
Insize 7262-250, OUTSIDE SPRING CALIPER, 10″, 6928640319686
$25.73
Made of carbon steel.
Outside Spring Caliper
10″ Diameter Range
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S/A Rear Wire Guide Spring (Includes 981705067000 & 981705068000), 981705260000