Used on j-57 aircraft engine. 6.399" outside diameter expanding concentric ring style load req'd to close to dia shown is 1.70 - 3.40 lbs chromium surface treated
0.400" hole diameter 10.860" outside diameter 1 additional bolt hole 0.550 in. dia min to 0.570 in. max located within 0.010 in of true position in relation to bolt circle dia
0.625" hole diameter 8.250" outside diameter 8 bolt hole quantity 0.250 in. dia locator hole spaced 22.5 deg from horizontal center line on 7.500 in. bolt circle circular