Confirmed
- Inner Dia. do (or d)(mm)
- 5.5
- Wire Dia. W(mm)
- 1.5
- Material
- Nitrile Rubber
- Application
- Nominal Number
- 6
- Type
- CAD
- 2D
- 3D
- Est. shipping days
- All
- Same-day shipping possible
O-Rings / S Series (NSA6)
Outline drawing and specifications table
Dimensional Drawings
■Detailed Fitting Size
| 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 |
■ S Series
| 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 | |||||||
Catalog
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