O-Rings / S Series (Part Numbers - CAD Download)
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Dimensional Drawings
| Type | No. | G Dimension (Tolerance + 0.25 0) | H Dimension H±0.05 | R Dimension Max. Value | ||
| No Back-Up Ring | Back-Up Ring on One Side Ring | Back-Up Rings on Both Sides Ring | ||||
| NSA·NSB·NSSW NSSK·NSF·NSFH | 3 to 22 | 2.5 | — | — | 1.0 | 0.2 |
| 22.4 to 50 | 2.7 | — | — | 1.5 | 0.4 | |
For Surface Mounting
For Fixing Cylinder Surface
No Back-Up Ring
For External Pressure
For Internal Pressure
| Type | [M] Material | [H] Hardness (JIS Hs) | Color | Applicable Temperature Range | Old JIS Material Identification Symbol | JIS Material Identification Symbol | Applications: | Features |
| NSA | Nitrile Rubber | 70±5 | Black | －30 to 100°C | Class 1 A | NBR-70-1 | Mineral Oil Resistant | Most representative material with superior oil / abrasion resistance and heat stability. |
| NSB | Nitrile Rubber | 90±5 | Black | －25 to 100°C | Class 1 B | NBR-90 | ||
| NSSW | Silicon Rubber | 50±5 | Milky White | －50 to 200°C | — | — | Heat Resistant | Having excellent high and low temperature resistances, this material covers the widest range of operating temperatures among synthetic rubbers. |
| NSSK | Silicon Rubber | 70±5 | Scarlet Red | －50 to 200°C | Class 4 C | VMQ-70 | Heat Resistant | |
| NSF | Fluoro Rubber | 70±5 | Black | －15 to 200°C | Class 4 D | FKM-70 | Best in oil / chemical resistance and heat stability as synthetic rubber. Suitable for a wide range of applications. | |
| NSFH | Fluoro Rubber | 90±5 | Black | －15 to 200°C | — | FKM-90 | Heat Resistant |
Specification Table
| Part Number |
| NSA25 |
| Part Number | Nominal Number | W | I.D. | Matching Material | |||||||
| Type | No. | do | NSA·NSB Tolerance | NSSW·NSSK Tolerance | NSF·NSFH Tolerance | d | Tolerance | D | Tolerance | ||
| NSA (Nitrile Rubber, Black) NSB (Nitrile Rubber, Black) NSSW (Silicon Rubber, Milky White) NSSK (Silicon Rubber, Vermilion) NSF (Fluoro Rubber, Black) NSFH (Fluoro Rubber, Black) | 3 | 3 | 1.5±0.1 | 2.5 | ±0.15 | ±0.45 | ±0.30 | 3 | 0 − 0.05 | 5 | +0.05 0 |
| 4 | 4 | 3.5 | 4 | 6 | |||||||
| 5 | 5 | 4.5 | 5 | 7 | |||||||
| 6 | 6 | 5.5 | 6 | 8 | |||||||
| 7 | 7 | 6.5 | 7 | 9 | |||||||
| 8 | 8 | 7.5 | 8 | 10 | |||||||
| 9 | 9 | 8.5 | 9 | 11 | |||||||
| 10 | 10 | 9.5 | 10 | 12 | |||||||
| 11.2 | 11.2 | 10.7 | 11.2 | 13.2 | |||||||
| 12 | 12 | 11.5 | 12 | 14 | |||||||
| 12.5 | 12.5 | 12.0 | 12.5 | 14.5 | |||||||
| 14 | 14 | 13.5 | 14 | 16 | |||||||
| 15 | 15 | 14.5 | 15 | 17 | |||||||
| 16 | 16 | 15.5 | 16 | 18 | |||||||
| 18 | 18 | 17.5 | 18 | 20 | |||||||
| 20 | 20 | 19.5 | 20 | 22 | |||||||
| 22 | 22 | 21.5 | 22 | 24 | |||||||
| 22.4 | 22.4 | 2.0±0.1 | 21.9 | 22.4 | 25.4 | ||||||
| 24 | 24 | 23.5 | 24 | 27 | |||||||
| 25 | 25 | 24.5 | 25 | 28 | |||||||
| 26 | 26 | 25.5 | 26 | 29 | |||||||
| 28 | 28 | 27.5 | 28 | 31 | |||||||
| 29 | 29 | 28.5 | 29 | 32 | |||||||
| 30 | 30 | 29.5 | 30 | 33 | |||||||
| 31.5 | 31.5 | 31.0 | 31.5 | 34.5 | |||||||
| 32 | 32 | 31.5 | 32 | 35 | |||||||
| 34 | 34 | 33.5 | 34 | 37 | |||||||
| 35 | 35 | 34.5 | 35 | 38 | |||||||
| 35.5 | 35.5 | 35.0 | 35.5 | 38.5 | |||||||
| 36 | 36 | 35.5 | 36 | 39 | |||||||
| 38 | 38 | 37.5 | 38 | 41 | |||||||
| 39 | 39 | 38.5 | 39 | 42 | |||||||
| 40 | 40 | 39.5 | 40 | 43 | |||||||
| 42 | 42 | 41.5 | ±0.25 | ±0.75 | ±0.50 | 42 | 45 | ||||
| 44 | 44 | 43.5 | 44 | 47 | |||||||
| 45 | 45 | 44.5 | 45 | 48 | |||||||
| 46 | 46 | 45.5 | 46 | 49 | |||||||
| 48 | 48 | 47.5 | 48 | 51 | |||||||
| 50 | 50 | 49.5 | 50 | 53 | |||||||
Part Number:
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| Part Number |
Standard Unit Price
| Minimum order quantity | Volume Discount | Inner Dia. do (or d) (mm) | Wire Dia. W (mm) | Material | Application | Nominal Number | |
|---|---|---|---|---|---|---|---|---|---|
0.41 € | 1 | 5 Days | 5.5 | 1.5 | Silicon Rubber | Heat Resistant | 6 | ||
0.41 € | 1 | 5 Days | 6.5 | 1.5 | Silicon Rubber | Heat Resistant | 7 | ||
0.41 € | 1 | 5 Days | 7.5 | 1.5 | Silicon Rubber | Heat Resistant | 8 | ||
0.41 € | 1 | 5 Days | 8.5 | 1.5 | Silicon Rubber | Heat Resistant | 9 | ||
0.41 € | 1 | 5 Days | 9.5 | 1.5 | Silicon Rubber | Heat Resistant | 10 | ||
0.46 € | 1 | 5 Days | 10.7 | 1.5 | Silicon Rubber | Heat Resistant | 11.2 | ||
0.54 € | 1 | 5 Days | 11.5 | 1.5 | Silicon Rubber | Heat Resistant | 12 | ||
0.46 € | 1 | 5 Days | 12 | 1.5 | Silicon Rubber | Heat Resistant | 12.5 | ||
0.46 € | 1 | 5 Days | 13.5 | 1.5 | Silicon Rubber | Heat Resistant | 14 | ||
0.50 € | 1 | 5 Days | 14.5 | 1.5 | Silicon Rubber | Heat Resistant | 15 | ||
0.50 € 0.23 € | 1 |
Same day
Stock | 15.5 | 1.5 | Silicon Rubber | Heat Resistant | 16 | ||
0.50 € | 1 | 5 Days | 17.5 | 1.5 | Silicon Rubber | Heat Resistant | 18 | ||
0.55 € | 1 | 5 Days | 19.5 | 1.5 | Silicon Rubber | Heat Resistant | 20 | ||
0.55 € | 1 | 5 Days | 21.5 | 1.5 | Silicon Rubber | Heat Resistant | 22 | ||
0.55 € | 1 | 5 Days | 21.9 | 2 | Silicon Rubber | Heat Resistant | 22.4 | ||
0.61 € | 1 | 5 Days | 23.5 | 2 | Silicon Rubber | Heat Resistant | 24 | ||
0.61 € | 1 | 5 Days | 24.5 | 2 | Silicon Rubber | Heat Resistant | 25 | ||
0.63 € | 1 | 5 Days | 25.5 | 2 | Silicon Rubber | Heat Resistant | 26 | ||
0.63 € | 1 | 5 Days | 27.5 | 2 | Silicon Rubber | Heat Resistant | 28 | ||
0.63 € | 1 | 5 Days | 28.5 | 2 | Silicon Rubber | Heat Resistant | 29 | ||
0.67 € 0.34 € | 1 |
Same day
Stock | 29.5 | 2 | Silicon Rubber | Heat Resistant | 30 | ||
0.67 € | 1 | 5 Days | 31 | 2 | Silicon Rubber | Heat Resistant | 31.5 | ||
0.67 € | 1 | 5 Days | 31.5 | 2 | Silicon Rubber | Heat Resistant | 32 | ||
0.78 € | 1 | 5 Days | 33.5 | 2 | Silicon Rubber | Heat Resistant | 34 | ||
0.78 € | 1 | 5 Days | 34.5 | 2 | Silicon Rubber | Heat Resistant | 35 | ||
0.78 € | 1 | 5 Days | 35 | 2 | Silicon Rubber | Heat Resistant | 35.5 | ||
0.78 € | 1 |
Same day
Stock | 35.5 | 2 | Silicon Rubber | Heat Resistant | 36 | ||
0.84 € | 1 | 5 Days | 37.5 | 2 | Silicon Rubber | Heat Resistant | 38 | ||
0.84 € | 1 | 5 Days | 38.5 | 2 | Silicon Rubber | Heat Resistant | 39 | ||
0.84 € | 1 | 5 Days | 39.5 | 2 | Silicon Rubber | Heat Resistant | 40 | ||
0.84 € 0.41 € | 1 |
Same day
Stock | 41.5 | 2 | Silicon Rubber | Heat Resistant | 42 | ||
0.84 € 0.46 € | 1 |
Same day
Stock | 43.5 | 2 | Silicon Rubber | Heat Resistant | 44 | ||
0.88 € | 1 | 5 Days | 44.5 | 2 | Silicon Rubber | Heat Resistant | 45 | ||
0.88 € | 1 | 5 Days | 45.5 | 2 | Silicon Rubber | Heat Resistant | 46 | ||
0.88 € | 1 | 5 Days | 47.5 | 2 | Silicon Rubber | Heat Resistant | 48 | ||
0.88 € | 1 |
Same day
Stock | 49.5 | 2 | Silicon Rubber | Heat Resistant | 50 |
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Basic information
| Type | S Series |
|---|
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Stock
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Basic Attributes
-
Inner Dia. do (or d)(mm)
-
Wire Dia. W(mm)
-
Material
- Nitrile Rubber
- Silicon Rubber
- Fluororubber
-
Nominal Number
-
Type
- NSA
- NSB
- NSF
- NSFH
- NSSK
- NSSW
-
Application
- Mineral Oil Resistant
- Heat Resistant
- Abrasion Resistance
- Chemical Resistant
- Cold Resistant
-
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Optional Attributes
- The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .
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