Sealing
Helps block openings in components and assemblies.
Rubber Corks
Tapered Rubber Stoppers
Tapered rubber stoppers for round openings.
- Material
- Silicone
- Custom manufacture
- Made at our factory to your dimensions, hardness and color requirements.
- Technical support
- Send a drawing or sample for a fit and material review.
STANDARD DIMENSIONS
Standard dimensions
↓ Download DrawingUse the reference sizes below to compare the fit. Confirm availability and lead time with your quotation.
Custom dimensions can also be manufactured to your requirements.
Numeric range filters
| RSA1.6-0.4-15.9 | 1.6 | 0.4 | 15.9 | Transparent | Silicone |
| RSA2-0.5-19.1 | 2 | 0.5 | 19.1 | Transparent | Silicone |
| RSA3.2-0.8-15.9 | 3.2 | 0.8 | 15.9 | Transparent | Silicone |
| RSA3.2-1.6-15.9 | 3.2 | 1.6 | 15.9 | Transparent | Silicone |
| RSA4.8-1.6-15.9 | 4.8 | 1.6 | 15.9 | Transparent | Silicone |
| RSA4.8-1.6-19.1 | 4.8 | 1.6 | 19.1 | Transparent | Silicone |
| RSA5.5-1.2-38.1 | 5.5 | 1.2 | 38.1 | Transparent | Silicone |
| RSA6.4-3.2-19.1 | 6.4 | 3.2 | 19.1 | Transparent | Silicone |
| RSA6.4-3.2-25.4 | 6.4 | 3.2 | 25.4 | Transparent | Silicone |
| RSA8.7-4.8-15.9 | 8.7 | 4.8 | 15.9 | Transparent | Silicone |
| RSA8.7-4.8-25.4 | 8.7 | 4.8 | 25.4 | Transparent | Silicone |
| RSA9.2-6.2-12.8 | 9.2 | 6.2 | 12.8 | Transparent | Silicone |
| RSA9.5-6.5-18.5 | 9.5 | 6.5 | 18.5 | Transparent | Silicone |
| RSA11-8.5-17.5 | 11 | 8.5 | 17.5 | Transparent | Silicone |
| RSA11.5-6.5-25 | 11.5 | 6.5 | 25 | Transparent | Silicone |
| RSA12-9-18 | 12 | 9 | 18 | Transparent | Silicone |
| RSA12.6-9-17 | 12.6 | 9 | 17 | White | EPDM |
| RSA14.3-7.9-28.6 | 14.3 | 7.9 | 28.6 | Transparent | Silicone |
| RSA14.3-9-25.4 | 14.3 | 9 | 25.4 | Transparent | Silicone |
| RSA15-11-20 | 15 | 11 | 20 | White | EPDM |
| RSA15.1-10.3-25.4 | 15.1 | 10.3 | 25.4 | Transparent | Silicone |
| RSA15.9-11.1-22.2 | 15.9 | 11.1 | 22.2 | Transparent | Silicone |
| RSA16.7-12.7-25.4 | 16.7 | 12.7 | 25.4 | Transparent | Silicone |
| RSA17-13.6-24 | 17 | 13.6 | 24 | White | EPDM |
| RSA17.5-11.1-25.4 | 17.5 | 11.1 | 25.4 | Transparent | Silicone |
All dimensions in mm. Match A–E to the series drawing. Reference dimensions; confirm tolerances, material and availability before ordering.
Product details
Tapered rubber stoppers, also called rubber corks or rubber bungs, fit round openings at different insertion depths. To size a rubber cork or rubber bung, compare both end diameters and the height with your opening. Our factory can customize these stoppers to your drawing or sample. If you need silicone bungs, tell us the temperature and contact media so we can review the compound.
Features
- Metric dimension table
- Custom sizes available
- Material and fit review
Applications
- Hole and port closure
- Tube protection
- Equipment assembly
Product information
- material
- Silicone
- hardness
- Confirm with quotation
- colors
- See dimension table; custom colors on request
- reference Series
- RSA
- reference Count
- 70
Product questions
How do I choose a size?
Match the lettered drawing to the dimensions in the table. Send the reference part number and mating hole or tube dimensions to confirm the fit.
Are these dimensions guaranteed stock sizes?
These are reference dimensions. Availability, tolerances, material and performance are confirmed with your quotation.
Made to your requirements
Our factory can adapt the dimensions and material to your drawing or sample.
Choose your dimensions, material, hardness and color.
Dimensions
Custom dimensions
to your drawing or sample
Material
Silicone and other
rubber compounds
Hardness
From soft to firm
to suit the material and fit
Color
Standard and custom
colors available
Application Examples
Discuss the intended use so we can review the shape, compound and sample checks.
Hole Protection
Covers and protects threaded or plain holes during manufacturing or processing.
Masking
Useful for masking holes in surface treatment processes.
NEED A CUSTOM SOLUTION?
Need a Custom Size or Material?
Send your drawing or sample details to our factory. Include the mating dimensions, service conditions and quantity so we can review your part.
Get a Quote