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): 76.2 Head Outside Diameter (in): 3 Head Thickness (mm): 20.3 Head Thickness (in): 0.8 Pilot Outside Diameter (mm): 46 Pilot Outside Diameter (in): 1.81 Inside Diameter (mm): 16.2 Inside Diameter (in): 0.64 Mount Height (mm): 30.2 Mount Height (in): 1.19 Bonded Sleeve: Yes