Isolation mounts are used to attach and position systems, accommodate displacement, and isolate components from the surrounding structure (vibration, shock, noise.) Mount Type: Two-Piece - Symmetric Head Outside Diameter (mm): 110 Head Outside Diameter (in): 4.33 Head Thickness (mm): 13.5 Head Thickness (in): 0.53 Pilot Outside Diameter (mm): 70.4 Pilot Outside Diameter (in): 2.77 Inside Diameter (mm): 28.4 Inside Diameter (in): 1.12 Mount Height (mm): 30 Mount Height (in): 1.18 Bonded Sleeve: Yes