Photo of rubber stoppers in several sizes and colors.Standard and Custom Rubber Stoppers

For over 50 years, Hawthorne Rubber Manufacturing Corporation has been a supplier of both standard and precision custom molded rubber stoppers to the exact specifications of OEM, industrial, laboratory and engineering development groups.

Some of the standard stopper sizes are listed below. Many of these sizes are available with one, two, or three holes for laboratory use. They are manufactured in many different materials in a wide range of durometer hardnesses.

Dimension diagram for stoppers.

Standard Stopper Sizes

Size Top Bottom Height Hole Top Bottom Height Hole
S-K36

.188"

.063"

.750"
- 4.8mm 1.6mm 19.0mm -
S-K36

.188"

.063"

.750"
.085" 4.8mm 1.6mm 19.0mm 2.2mm
XXX .313" .188" .750" - 7.9mm 4.8mm 19.0mm -
XXX .313" .188" .750" .085" 7.9mm 4.8mm 19.0mm 2.2mm
XX .375" .250" .750" - 9.5mm 6.4mm 19.0mm -
XX .375" .250" .750" .085" 9.5mm 6.4mm 19.0mm 2.2mm
000 .469" .344" .750" - 11.9mm 8.7mm 19.0mm -
000 .469" .344" .750" .085" 11.9mm 8.7mm 19.0mm 2.2mm
00 .616" .404" 1.081" - 15.6mm 10.3mm 27.4mm -
0 .688" .500" 1" - 17.5mm 12.7mm 25.4mm -
1 .813" .547" 1" - 20.7mm 13.9mm 25.4mm -
2 .875" .625" 1" - 22.2mm 15.9mm 25.4mm -
3 .938" .688" 1" - 23.8mm 17.5mm 25.4mm -
4 1.02" .781" 1" - 25.8mm 19.8mm 25.4mm -
5 1.06" .906" 1" - 26.9mm 23.0mm 25.4mm -
6 1.25" 1.00" 1" - 31.8mm 25.4mm 25.4mm -
7 1.50" 1.25" 1" - 38.1mm 31.8mm 25.4mm -
8 1.63" 1.31" 1" - 41.4mm 33.3mm 25.4mm -
9 1.88" 1.50" 1" - 47.8mm 38.1mm 25.4mm -
10 2.00" 1.63" 1" - 50.8mm 41.4mm 25.4mm -
11 2.25" 1.88" 1" - 57.2mm 47.8mm 25.4mm -
11 1/2 2.4" 2.0" 1" - 60.0mm 51.0mm 26.0mm -
11 1/2 2.4" 2.0" 1" .39" 60.0mm 51.0mm 26.0mm 10mm
12 1/2 2.63" 2.13" 1.25" - 66.7mm 54.0mm 31.8mm -
- 2.63" 2" 2" - 66.7mm 50.8mm 50.8mm -
13 2.75" 2.38" 1.13" - 69.9mm 60.3mm 28.6mm -
13 1/2 3" 2.4" 1" - 75.0mm 61.0mm 26.0mm -
13 1/2 3" 2.4" 1" .39" 75.0mm 61.0mm 26.0mm 10mm
14 - -
15 - -
- 4.25" 3.5" 1.5" - 108.0mm 88.9mm 38.1mm -
- 5.25" 4.25" 2" - 133.3mm 108.0mm 50.8mm -
- 6.125" 5.5" 2" .188" 155.6mm 139.7mm 50.8mm 4.8mm

The above table dimensions are reference dimensions. Actual dimensions vary based on the material being used. Actual dimensions will be supplied upon request.

Online Request For Quotation Form.

If you don't see the stopper size you are looking for, just ask us and we will quote you on it. We supply both standard and custom stoppers in a wide range of materials, including Fluorocarbon (both Fluorel and Viton®), Fluorosilicone, Silicone, Urethane, Nitrile, Neoprene, EPR, SBR, and Natural Rubber. We mold stoppers in translucent, colored or black rubber. Some compounds can conduct electricity, or be used in FDA, dental, or pharmaceutical applications.