NR (Natural Rubber)
Flexible and resilient for general mechanical applications. Review outdoor exposure and contact with oil before selecting it.
FIND YOUR FIT
Seven profiles. One size chart. Filter by type and dimensions to find your next part.
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MATCHING CATALOGUE SIZES
All grommet profiles
Choose a profile above to see its dimension diagram and column guide.
For oval sizes, enter both axes, e.g. 10 × 20. Leave unknown dimensions blank.
All catalogue dimensions in mm. Inside dimensions describe a recess for blind profiles, not an open cable passage. Prices and MOQ follow your material and color selection.
Scroll the table horizontally to see all dimensions and ordering options →
| Part / profile | Outside dia. / size (mm) | Inside dia. / recess (mm) | Groove dia. / size (mm) | Groove width (mm) | Overall thickness (mm) | Membrane thickness (mm) | Average unit price (USD / pc) | Material | Color | Quantity (min. order) | Cart |
|---|---|---|---|---|---|---|---|---|---|---|---|
| RG10-3-8-2Type D | 10 | 3 | 8 | 2 | 5 | — | $0.063 | ||||
| RG10-4-7-1Type D | 10 | 4 | 7 | 1 | 4 | — | $0.062 | ||||
| RG10-4-7-1.5Type D | 10 | 4 | 7 | 1.5 | 4.5 | — | $0.062 | ||||
| RG10-4-7-2Type D | 10 | 4 | 7 | 2 | 5 | — | $0.062 | ||||
| RG10-4-8-1Type D | 10 | 4 | 8 | 1 | 4 | — | $0.062 | ||||
| RG10-4-8-1.5Type D | 10 | 4 | 8 | 1.5 | 4.5 | — | $0.063 | ||||
| RG10-4-8-2Type D | 10 | 4 | 8 | 2 | 5 | — | $0.063 | ||||
| RG10-5-7-1Type D | 10 | 5 | 7 | 1 | 4 | — | $0.062 | ||||
| RG10-5-7-1.5Type D | 10 | 5 | 7 | 1.5 | 4.5 | — | $0.062 | ||||
| RG10-5-7-2Type D | 10 | 5 | 7 | 2 | 5 | — | $0.062 | ||||
| RG10-5-8-1Type D | 10 | 5 | 8 | 1 | 4 | — | $0.062 | ||||
| RG10-5-8-1.5Type D | 10 | 5 | 8 | 1.5 | 4.5 | — | $0.062 |
Catalogue dimensions are for comparison. Confirm the full drawing and fit before ordering. “Closed” indicates no open cable passage; “—” requires drawing review and is not matched by a dimension filter. For oval and other two-axis sizes, enter both axes.
AFTER YOU FIND THE SIZE
Choose a material for your grommet.
The Rubber Grommet Size Chart helps you compare fit. Then choose the rubber for the temperature, fluids and exposure in your application.
NBR (Nitrile)
A common starting point for petroleum-oil exposure. Check the specific fluid, temperature and compound.
CR (Neoprene)
A balanced option for general mechanical service and weather exposure. Fluid compatibility depends on the compound.
EPDM Rubber
A starting point for outdoor, ozone and water exposure. General-purpose grades are not suited to petroleum oils.
VMQ (Silicone)
Flexible across a broad temperature range. Check tear, abrasion and fluid requirements for the intended service.
FKM (Fluorocarbon)
Consider for demanding heat and fluid exposure. Compatibility and low-temperature performance depend on the grade.
SBR (Styrene-Butadiene)
A general-purpose option with useful abrasion resistance. Review oil, ozone and weather exposure before ordering.
Need to confirm a material?
Tell us the operating conditions and the fluids the part will contact.
Discuss material requirements →These are material-family introductions. Suitability depends on the actual compound and service conditions. Available catalogue materials and colors are shown in each size row.
SIZING & SELECTION HELP
Rubber Grommet Size Chart FAQ
How do I use the Rubber Grommet Size Chart?
Choose a profile, then enter the dimensions you know. Match the panel cutout to the groove size, the panel thickness to the groove width, and the cable to the inside opening. The profile diagram explains the dimension names used in the table. Open a part number for its model-specific drawing. Check the outside size and overall thickness for installation clearance.
Which dimensions should I measure?
Measure the panel opening, panel thickness and cable or bundle diameter. For an oval opening, measure both axes and enter them as a pair, such as 10 × 20. Outside flange size is different from the panel cutout size. Use the drawing to confirm the feature associated with each dimension.
Can I compare metric and inch grommet sizes?
Yes. Switch between mm and inches to change the table and your entered dimensions. Converted table values are rounded; metric and inch source entries remain distinct. Engineering drawings retain their stated units and exact annotations, so check the full-size drawing before ordering.
What does the inside size mean on a blind grommet?
Blind round and blind oval grommets have a closed center. Their inside size describes a recess, not an open cable passage. The table shows the recess dimension and membrane thickness separately. A cable-opening filter excludes these closed profiles.
Does the same grommet size come in every material and color?
Availability varies by part. Choose from the available material and color options within each row. Each row updates its unit price and minimum order quantity when you change the material or color. MOQ applies to each size, material and color combination.
What if I cannot find the size I need?
Try removing a filter or searching the part number. If there is no suitable catalogue size, send your drawing or details of an existing sample for manufacturability review and quotation. Custom manufacturing can include tooling, sampling and production against the agreed specification.
Can I check a sample before placing an order?
Free samples may be available for eligible projects. Contact us to confirm eligibility and sample arrangements before planning your evaluation.
Still looking for the right fit?
Send your drawing or an existing sample for manufacturability review and a custom manufacturing quote.