Rubber Grommet Hole Size Chart and Dimensions

Find the Right Product for Your Needs with Our Rubber Grommet Hole Size Chart.

Marco Rubber & Plastics stocks a huge inventory of Commercial Grade Rubber Grommets and Military Style MS35489 and AN931 series Rubber Grommets. Our standard shape rubber grommets are designed to be pushed into holes to protect wires, cables hoses and anything else passing through from damage and vibration. The exact shape, style and finish can vary, but perform the same function. SBR and NBR rubber grommet materials are interchangeable in most applications with NBR being a bit softer and specified by old military regulations.

Rubber Grommet DimensionsRubber Grommet Dimensions
GW - Rubber Grommet Groove Width should approximately match the thickness of the installation wall.
GD - Rubber Grommet Groove Diameter (GD) should approximately match the installation hole size.
OD, ID and TK - Dimensions are typically less critical depending on the application.

Marco Part NumberGWGDIDODThkMaterialMS35489 Size SpecAN931 Size SpecMilitary Compliant Material by Request
0.0310.3750.1880.50.18860A BLK SBR
0.0312.3132.1252.8750.37560A BLK SBR
0.0310.1880.1250.250.12550A BLK NBR
0.0310.1880.1250.250.12550A BLK NBRNASM3036
0.0310.1880.1250.250.12560A BLK SBR
0.0310.3750.2810.5630.2560A BLK SBR
0.0310.4380.3130.6250.21960A BLK SBR
0.0310.250.1880.3750.18860A BLK SBR
0.0310.2810.1560.50.2560A BLK SBR
0.0310.3130.2190.4690.12560A BLK SBR
0.0310.3130.250.50.15660A BLK SBR
0.0310.4690.1720.6250.28160A BLK SBR

$50-$100 minimum order typically for rubber grommets in stock depending on size and complexity.

$500-$1000 minimum order with additional $500+ one-time engineering fee depending on size and complexity typically for made to order size, shape or material rubber grommets.



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