Rubber grommet sizes must be matched to the mounting opening, panel thickness and cable or tube. A single diameter is not enough to determine fit.
Review the inside diameter, groove diameter, groove width, flange diameter and overall thickness on the product drawing. For noncircular parts, compare the full cutout profile. Include connector clearance and dimensional tolerances.
Choose the material and hardness for the environment and installation method. For a nonstandard size, submit a drawing or existing sample for manufacturing review. Confirm the sample's fit before production rather than relying on a general promise that every opening can be accommodated.
