Product Details
Rubber Corks(Tapered-RSA)
Product Specifications
- Material
- NR, NBR, EPDM, Silicone, Neoprene, FKM, etc.
- Hardness
- 30-80 Shore A
- Temperature Range
- Confirm the selected compound, service temperature, exposure duration and operating medium before ordering.
- Colors
- Black, white. Custom colors can be matched to your Pantone color code.
Available Sizes
Dimensions are in mm unless otherwise indicated. Custom colors are available to your Pantone color code.
| Part No. | Diameter A | Diameter B | Height | Materials | |
|---|---|---|---|---|---|
| RSA1.6-0.4-15.9 | 1.6 | 0.4 | 15.9 | Silicone | |
| RSA2-0.5-19.1 | 2 | 0.5 | 19.1 | Silicone | |
| RSA3.2-0.8-15.9 | 3.2 | 0.8 | 15.9 | Silicone | |
| RSA3.2-1.6-15.9 | 3.2 | 1.6 | 15.9 | Silicone | |
| RSA4.8-1.6-15.9 | 4.8 | 1.6 | 15.9 | Silicone | |
| RSA4.8-1.6-19.1 | 4.8 | 1.6 | 19.1 | Silicone | |
| RSA5.5-1.2-38.1 | 5.5 | 1.2 | 38.1 | Silicone | |
| RSA6.4-3.2-19.1 | 6.4 | 3.2 | 19.1 | Silicone | |
| RSA6.4-3.2-25.4 | 6.4 | 3.2 | 25.4 | Silicone | |
| RSA8.7-4.8-15.9 | 8.7 | 4.8 | 15.9 | Silicone | |
| RSA8.7-4.8-25.4 | 8.7 | 4.8 | 25.4 | Silicone | |
| RSA9.2-6.2-12.8 | 9.2 | 6.2 | 12.8 | Silicone | |
| RSA9.5-6.5-18.5 | 9.5 | 6.5 | 18.5 | Silicone | |
| RSA11-8.5-17.5 | 11 | 8.5 | 17.5 | Silicone | |
| RSA11.5-6.5-25 | 11.5 | 6.5 | 25 | Silicone | |
| RSA12-9-18 | 12 | 9 | 18 | Silicone | |
| RSA12.6-9-17 | 12.6 | 9 | 17 | EPDM | |
| RSA14.3-7.9-28.6 | 14.3 | 7.9 | 28.6 | Silicone | |
| RSA14.3-9-25.4 | 14.3 | 9 | 25.4 | Silicone | |
| RSA15-11-20 | 15 | 11 | 20 | EPDM | |
| RSA15.1-10.3-25.4 | 15.1 | 10.3 | 25.4 | Silicone | |
| RSA15.9-11.1-22.2 | 15.9 | 11.1 | 22.2 | Silicone | |
| RSA16.7-12.7-25.4 | 16.7 | 12.7 | 25.4 | Silicone | |
| RSA17-13.6-24 | 17 | 13.6 | 24 | EPDM | |
| RSA17.5-11.1-25.4 | 17.5 | 11.1 | 25.4 | Silicone | |
| RSA19-15-27 | 19 | 15 | 27 | EPDM | |
| RSA19.1-14.3-25.4 | 19.1 | 14.3 | 25.4 | Silicone | |
| RSA19.1-14.3-14.3 | 19.1 | 14.3 | 14.3 | Silicone | |
| RSA19.8-15.9-25.4 | 19.8 | 15.9 | 25.4 | Silicone | |
| RSA20-15.5-16 | 20 | 15.5 | 16 | Silicone | |
| RSA21-16-26 | 21 | 16 | 26 | EPDM | |
| RSA23-18-26 | 23 | 18 | 26 | EPDM | |
| RSA23.5-19-19.5 | 23.5 | 19 | 19.5 | Silicone | |
| RSA23.8-18.3-25.4 | 23.8 | 18.3 | 25.4 | Silicone | |
| RSA25.4-19.8-25.4 | 25.4 | 19.8 | 25.4 | Silicone | |
| RSA26-20-28 | 26 | 20 | 28 | EPDM | |
| RSA27-23-25.4 | 27 | 23 | 25.4 | Silicone | |
| RSA27.9-23.8-25.4 | 27.9 | 23.8 | 25.4 | Silicone | |
| RSA29-23-28 | 29 | 23 | 28 | EPDM | |
| RSA31.8-26.2-25.4 | 31.8 | 26.2 | 25.4 | Silicone | |
| RSA33-26-28 | 33 | 26 | 28 | EPDM | |
| RSA33.4-27-25.4 | 33.4 | 27 | 25.4 | Silicone | |
| RSA36.5-30.2-25.4 | 36.5 | 30.2 | 25.4 | Silicone | |
| RSA37-28-30 | 37 | 28 | 30 | EPDM | |
| RSA38.9-31.8-25.4 | 38.9 | 31.8 | 25.4 | Silicone | |
| RSA39-31-25 | 39 | 31 | 25 | Silicone | |
| RSA41.3-33.3-25.4 | 41.3 | 33.3 | 25.4 | Silicone | |
| RSA42-32-31 | 42 | 32 | 31 | EPDM | |
| RSA42.9-35.7-25.4 | 42.9 | 35.7 | 25.4 | Silicone | |
| RSA43-36-25 | 43 | 36 | 25 | Silicone | |
| RSA44.5-37.3-25.4 | 44.5 | 37.3 | 25.4 | Silicone | |
| RSA46-38-25 | 46 | 38 | 25 | Silicone | |
| RSA46-38.1-25.4 | 46 | 38.1 | 25.4 | Silicone | |
| RSA49-37-31 | 49 | 37 | 31 | EPDM | |
| RSA50-41.3-25.4 | 50 | 41.3 | 25.4 | Silicone | |
| RSA52-43-32 | 52 | 43 | 32 | EPDM | |
| RSA52.4-44.5-25.4 | 52.4 | 44.5 | 25.4 | Silicone | |
| RSA53-45-25 | 53 | 45 | 25 | Silicone | |
| RSA56-46-34 | 56 | 46 | 34 | EPDM | |
| RSA56-47.6-25.4 | 56 | 47.6 | 25.4 | Silicone | |
| RSA62-51-35 | 62 | 51 | 35 | EPDM | |
| RSA62.7-50-25.4 | 62.7 | 50 | 25.4 | Silicone | |
| RSA63-50-25 | 63 | 50 | 25 | Silicone | |
| RSA63.5-54-25.4 | 63.5 | 54 | 25.4 | Silicone | |
| RSA67-55-39 | 67 | 55 | 39 | EPDM | |
| RSA68.3-57.9-25.4 | 68.3 | 57.9 | 25.4 | Silicone | |
| RSA75-61.9-34.9 | 75 | 61.9 | 34.9 | Silicone | |
| RSA88.9-76.2-38.1 | 88.9 | 76.2 | 38.1 | Silicone | |
| RSA101.6-82.6-38.1 | 101.6 | 82.6 | 38.1 | Silicone | |
| RSA127-88.9-50.8 | 127 | 88.9 | 50.8 | Silicone |
Can’t find your size? Need a custom part?
Contact us with your dimensions, drawing or sample requirements. We’ll help you review a custom size, shape or material for your application.
MEASURE · SELECT · INSTALL
Select a taper by its seating depth
RSA narrows from a large end to a small end. The contact diameter changes with insertion depth, so both end diameters and the height matter.
01 / MEASURE
Compare both diameters with the bore
Use these definitions with this page’s drawing and model table. Dimensions are in mm; letters may describe different features in other series.
- ALarge-end diameter
- The drawing labels this Diameter A. It is the widest end, not a universal hole-size recommendation.
- BSmall-end diameter
- The drawing labels this Diameter B. This is the leading end that enters the opening first.
- HHeight
- H here refers to the table column Height: the full axial length from large end to small end. It is not the installed insertion depth.
- Measure beyond the rim. Record the hole diameter below any chamfer, in two directions and at the intended contact depth. State whether the bore is straight or tapered.
- Record depth and access. Measure the distance to the bottom or the nearest obstruction. Leave an agreed portion exposed so the stopper can be removed.
- Use the taper as an initial screen. For an undeformed taper entering a straight bore, the small end must enter and the larger section must reach the bore. This geometry does not establish compression, retention or sealing; confirm the actual seated depth with a sample.
02 / SELECT
Match the taper to the job
Temporary closing
Consider the taper when seating depth can be adjusted during fitting. Specify how often the stopper will be removed and how much of its large end must remain accessible.
Masking an opening
Specify the exact surface to mask and whether an exposed rim is acceptable. Confirm compound compatibility with the bath, coating and heat cycle.
03 / INSTALL
Insert the small end and check the contact position
Trial assembly checks
- Start straight. Inspect and clean the rim, then align the small end with the hole. Apply controlled, even pressure; stop if it tilts or jams.
- Check the depth. Record the seated position. Confirm that the tip has not bottomed out before the intended contact is reached.
- Check removal. Keep the agreed amount of the large end exposed and trial removal after the intended process or storage period.
- Verify performance. Check retention and, if required, leakage under your actual conditions. Do not assign one sealing performance to the whole taper range.
Send for a fit review: Hole diameter and bore profile, available depth, desired seated position, masking or closing purpose, process conditions and selected RSA part number. Add these details to your inquiry.
Need a different size or shape?
Tell us what you need. We'll help you find the right rubber or silicone part and prepare a quote.