THREADED RING ( HW- 172. 28 )-- FULLY M/ CD ITEM AS PER DRG. 31050109010 REV. 01 WITH MATL. AS PER SPECN, FITTED KEYS L = 135 ( HW- 289. 52 )-- FULLY M/ CD ITEM AS PER DRG. 31060127507 REV. 03 WITH MATL. AS PER S, SPACER ( HW- 259. 18 )-- FULLY M/ CD ITEM AS PER DRG. 41060118513 REV. 02 WITH MATL. HW19390 REV. 04