For a grommet specified to fit a 1-1/2-inch mounting hole, the nominal cutout is 38.1 mm. Confirm the unit, tolerances and panel-thickness range on the product drawing.
The mounting hole does not determine the internal passage. Check the cable or tube dimensions, connector clearance, groove and flange features separately. Follow the selected part's installation method.
Choose the compound for temperature, fluids and weather exposure. A suitable fit does not establish sealing or vibration performance. For a custom part, provide a drawing or existing sample and agree on the material, dimensions and acceptance requirements.
