A rubber grommet for a 2-inch mounting hole is specified for a nominal 50.8 mm cutout. Confirm the allowed tolerances and panel-thickness range.
Choose an open profile for a cable passage or a closed profile for an unused opening. Check passage dimensions, connector clearance and retaining features. The mounting-hole diameter alone does not determine the required part.
Rubber can wear, crack or deteriorate under unsuitable conditions. Select the compound for temperature, fluids and weather exposure. Verify any sealing or mechanical performance and follow the application's inspection requirements rather than treating the part as indestructible.
