"ALUMINUM ALLOY SS5 8750-T5 FSCM78286,ANODIC COATED,2.437 IN. O/A LG,3.871 IN. MIN TO 3.873 IN. MAX O/A DIA,3.250 IN. MIN TO 3.252 IN. MAX DIA BORE THRU,1 EXTERNAL GROOVE 0.410 IN. MIN TO 0.415 IN. MAX W 0.368 IN. DP,1 EXTERNAL GROOVE 0.250 IN. W 0.118 IN. MIN TO 0.126 IN. MAX DP,1 INTERNAL GROOVE 0.410 IN. MIN TO 0.415 IN. MAX W 0.368 IN. DP,1 INTERNAL GROOVE 0.150 IN. W 0.248 IN. MIN TO 0.250 IN. MAX DP,MACHINED SURFACES 32.0 63.0 AND 100.0 MICROINCH FINISH"