Camburg 3.25 Rear LHT 4130 Snout (4.00 x .250)These 3. 25 hub snouts are CNC machined in house from aircraft quality 4130 chromoly. Our manufacturing process on these gives you the best product available. Starting with a 4" billet 4130 bar we machine them to rough dimensions of the final part. We then have them heat treated and stress relieved by a leading aerospace facility. After heat treatment we then machine and thread the critical dimensions and bearing surfaces to 0. 001" tolerances. These