O-Rings / G Series
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| 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 | ||||
| NGA·NGB·NGSW NGSK·NGF | 25 to 145 | 4.1 | 5.6 | 7.3 | 2.4 | 0.7 |
| 170 | 7.5 | 9 | 11.5 | 4.6 | 0.9 | |
(1) For O-rings for surface mounting, design the piping system in such a way that, when the internal pressure is applied, the outer circumference of O-rings is put in close contact with the outer wall of the groove; and when an external pressure is applied, the inner circumference of O-rings is put in close contact with the inner wall of the groove.
(2) When using an O-ring for surface mounting for an internal pressure, if the length of D is 30 mm or less, make the length approximately 0.2 to 0.3 mm longer.
(3) The groove dimensions are for reference.
For Surface Mounting
For Fixing Cylinder Surface
For External Pressure
For Internal Pressure
No Back-Up Ring
Back-Up Ring on One Side
Back-Up Rings on Both Sides
| Type | [M] Material | [H]Hardness (JIS Hs) | Color | Operable Temperature Range | JIS Symbol | Applications: | Features |
| NGA | Nitrile Rubber | 70±5 | Black | －30 to 100°C | Class 1 A | Mineral Oil Resistant | Most representative material with superior oil / abrasion resistance and heat stability. |
| NGB | Nitrile Rubber | 90±5 | Black | －25 to 100°C | Class 1 B | Heat Resistant | It has the characteristics almost equivalent to the Class 1A besides higher hardness and better pressure resistance. |
| NGSW | Silicon Rubber | 50±5 | Milky White | －50 to 200°C | — | Having excellent high and low temperature resistances, this material covers the widest range of operating temperatures among synthetic rubbers. | |
| NGSK | Silicon Rubber | 70±5 | Scarlet Red | －50 to 200°C | Class 4 C | Heat Resistant | |
| NGF | Fluoro Rubber | 70±5 | Black | －15 to 200°C | Class 4 D | Heat Resistant | Best in oil / chemical resistance and heat stability as synthetic rubber. Suitable for a wide range of applications. |
Specification Table
| Part Number |
| NGA25 |
| Part Number | JIS Nominal Number | W | I.D. | Matching Material | |||||||
| Type | No. | do | NGA·NGB Tolerance | NGSW·NGSK Tolerance | NGF Tolerance | d | Tolerance | D | Tolerance | ||
| NGA (Nitrile Rubber, Black) NGB (Nitrile Rubber, Black) NGSW (Silicon Rubber, Milky White) NGSK (Silicon Rubber, Vermilion) NGF (Fluoro Rubber, Black) | 25 | G25 | 3.1±0.1 | 24.4 | ±0.25 | ±0.38 | ±0.30 | 25 | 0 −0.10 | 30 | +0.10 0 |
| 30 | G30 | 29.4 | ±0.29 | ±0.44 | ±0.35 | 30 | 35 | ||||
| 35 | G35 | 34.4 | ±0.33 | ±0.50 | ±0.40 | 35 | 40 | ||||
| 40 | G40 | 39.4 | ±0.37 | ±0.56 | ±0.45 | 40 | 45 | ||||
| 45 | G45 | 44.4 | ±0.41 | ±0.62 | ±0.50 | 45 | 50 | ||||
| 50 | G50 | 49.4 | ±0.45 | ±0.68 | ±0.54 | 50 | 55 | ||||
| 55 | G55 | 54.4 | ±0.49 | ±0.74 | ±0.59 | 55 | 60 | ||||
| 60 | G60 | 59.4 | ±0.53 | ±0.80 | ±0.64 | 60 | 65 | ||||
| 65 | G65 | 64.4 | ±0.57 | ±0.86 | ±0.69 | 65 | 70 | ||||
| 70 | G70 | 69.4 | ±0.61 | ±0.92 | ±0.74 | 70 | 75 | ||||
| 75 | G75 | 74.4 | ±0.65 | ±0.98 | ±0.78 | 75 | 80 | ||||
| 80 | G80 | 79.4 | ±0.69 | ±1.04 | ±0.83 | 80 | 85 | ||||
| 105 | G105 | 104.4 | ±0.87 | — | ±0.87 | 105 | 110 | ||||
| 120 | G120 | 119.4 | ±0.98 | ±0.98 | 120 | 125 | |||||
| 145 | G145 | 144.4 | ±1.16 | ±1.16 | 145 | 150 | |||||
| 170 | G170 | 5.7±0.1 | 169.3 | ±1.33 | ±1.33 | 170 | 180 | ||||
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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 | Material Code, JIS | JIS Nominal Number | |
|---|---|---|---|---|---|---|---|---|---|---|
0.53 € | 1 | Available | 5 Days | 24.4 | 3.1 | Nitrile Rubber | Mineral Oil Resistant / Heat Resistant / Abrasion Resistance | Class 1 A | G25 | |
0.63 € | 1 | Available | 5 Days | 29.4 | 3.1 | Nitrile Rubber | Mineral Oil Resistant / Heat Resistant / Abrasion Resistance | Class 1 A | G30 | |
1.06 € | 1 | Available | 5 Days | 34.4 | 3.1 | Nitrile Rubber | Mineral Oil Resistant / Heat Resistant / Abrasion Resistance | Class 1 A | G35 | |
0.82 € | 1 | Available | 5 Days | 39.4 | 3.1 | Nitrile Rubber | Mineral Oil Resistant / Heat Resistant / Abrasion Resistance | Class 1 A | G40 | |
0.84 € | 1 | Available | 5 Days | 44.4 | 3.1 | Nitrile Rubber | Mineral Oil Resistant / Heat Resistant / Abrasion Resistance | Class 1 A | G45 | |
0.84 € | 1 | Available |
Same day
Stock | 49.4 | 3.1 | Nitrile Rubber | Mineral Oil Resistant / Heat Resistant / Abrasion Resistance | Class 1 A | G50 | |
1.03 € | 1 | Available | 5 Days | 54.4 | 3.1 | Nitrile Rubber | Mineral Oil Resistant / Heat Resistant / Abrasion Resistance | Class 1 A | G55 | |
1.03 € | 1 | Available | 5 Days | 59.4 | 3.1 | Nitrile Rubber | Mineral Oil Resistant / Heat Resistant / Abrasion Resistance | Class 1 A | G60 | |
1.18 € | 1 | Available | 5 Days | 64.4 | 3.1 | Nitrile Rubber | Mineral Oil Resistant / Heat Resistant / Abrasion Resistance | Class 1 A | G65 | |
1.18 € | 1 | Available | 5 Days | 69.4 | 3.1 | Nitrile Rubber | Mineral Oil Resistant / Heat Resistant / Abrasion Resistance | Class 1 A | G70 | |
1.18 € | 1 | Available | 5 Days | 74.4 | 3.1 | Nitrile Rubber | Mineral Oil Resistant / Heat Resistant / Abrasion Resistance | Class 1 A | G75 | |
1.24 € | 1 | Available | 5 Days | 79.4 | 3.1 | Nitrile Rubber | Mineral Oil Resistant / Heat Resistant / Abrasion Resistance | Class 1 A | G80 | |
1.71 € | 1 | Available | 5 Days | 104.4 | 3.1 | Nitrile Rubber | Mineral Oil Resistant / Heat Resistant / Abrasion Resistance | Class 1 A | G105 | |
2.30 € | 1 | Available |
Same day
Stock | 119.4 | 3.1 | Nitrile Rubber | Mineral Oil Resistant / Heat Resistant / Abrasion Resistance | Class 1 A | G120 | |
1.52 € | 1 | Available | 5 Days | 144.4 | 3.1 | Nitrile Rubber | Mineral Oil Resistant / Heat Resistant / Abrasion Resistance | Class 1 A | G145 | |
5.74 € | 1 | Available | 5 Days | 169.3 | 5.7 | Nitrile Rubber | Mineral Oil Resistant / Heat Resistant / Abrasion Resistance | Class 1 A | G170 | |
0.20 € | 1 | 5 Days | 24.4 | 3.1 | Nitrile Rubber | Mineral Oil Resistant / Heat Resistant / Abrasion Resistance / High Pressure Use | Class 1 B | G25 | ||
0.27 € | 1 | 5 Days | 29.4 | 3.1 | Nitrile Rubber | Mineral Oil Resistant / Heat Resistant / Abrasion Resistance / High Pressure Use | Class 1 B | G30 | ||
0.27 € | 1 | 5 Days | 34.4 | 3.1 | Nitrile Rubber | Mineral Oil Resistant / Heat Resistant / Abrasion Resistance / High Pressure Use | Class 1 B | G35 | ||
0.33 € | 1 | 5 Days | 39.4 | 3.1 | Nitrile Rubber | Mineral Oil Resistant / Heat Resistant / Abrasion Resistance / High Pressure Use | Class 1 B | G40 | ||
0.34 € | 1 | 5 Days | 44.4 | 3.1 | Nitrile Rubber | Mineral Oil Resistant / Heat Resistant / Abrasion Resistance / High Pressure Use | Class 1 B | G45 | ||
0.34 € | 1 | 5 Days | 49.4 | 3.1 | Nitrile Rubber | Mineral Oil Resistant / Heat Resistant / Abrasion Resistance / High Pressure Use | Class 1 B | G50 | ||
0.35 € | 1 | 5 Days | 54.4 | 3.1 | Nitrile Rubber | Mineral Oil Resistant / Heat Resistant / Abrasion Resistance / High Pressure Use | Class 1 B | G55 | ||
0.35 € | 1 | 5 Days | 59.4 | 3.1 | Nitrile Rubber | Mineral Oil Resistant / Heat Resistant / Abrasion Resistance / High Pressure Use | Class 1 B | G60 | ||
0.36 € | 1 | 5 Days | 64.4 | 3.1 | Nitrile Rubber | Mineral Oil Resistant / Heat Resistant / Abrasion Resistance / High Pressure Use | Class 1 B | G65 | ||
0.36 € | 1 | 5 Days | 69.4 | 3.1 | Nitrile Rubber | Mineral Oil Resistant / Heat Resistant / Abrasion Resistance / High Pressure Use | Class 1 B | G70 | ||
0.36 € | 1 | 5 Days | 74.4 | 3.1 | Nitrile Rubber | Mineral Oil Resistant / Heat Resistant / Abrasion Resistance / High Pressure Use | Class 1 B | G75 | ||
0.45 € | 1 | 5 Days | 79.4 | 3.1 | Nitrile Rubber | Mineral Oil Resistant / Heat Resistant / Abrasion Resistance / High Pressure Use | Class 1 B | G80 | ||
1.06 € | 1 | Available | 5 Days | 24.4 | 3.1 | [Fluororubber] Fluororubber | Mineral Oil Resistant / Heat Resistant / Chemical Resistant | Class 4 D | G25 | |
1.34 € | 1 | Available | 5 Days | 29.4 | 3.1 | [Fluororubber] Fluororubber | Mineral Oil Resistant / Heat Resistant / Chemical Resistant | Class 4 D | G30 | |
1.45 € | 1 | Available | 5 Days | 34.4 | 3.1 | [Fluororubber] Fluororubber | Mineral Oil Resistant / Heat Resistant / Chemical Resistant | Class 4 D | G35 | |
1.81 € | 1 | Available | 5 Days | 39.4 | 3.1 | [Fluororubber] Fluororubber | Mineral Oil Resistant / Heat Resistant / Chemical Resistant | Class 4 D | G40 | |
1.96 € | 1 | Available | 5 Days | 44.4 | 3.1 | [Fluororubber] Fluororubber | Mineral Oil Resistant / Heat Resistant / Chemical Resistant | Class 4 D | G45 | |
2.32 € | 1 | Available | 5 Days | 49.4 | 3.1 | [Fluororubber] Fluororubber | Mineral Oil Resistant / Heat Resistant / Chemical Resistant | Class 4 D | G50 | |
2.42 € | 1 | Available | 5 Days | 54.4 | 3.1 | [Fluororubber] Fluororubber | Mineral Oil Resistant / Heat Resistant / Chemical Resistant | Class 4 D | G55 | |
2.42 € | 1 | Available | 5 Days | 59.4 | 3.1 | [Fluororubber] Fluororubber | Mineral Oil Resistant / Heat Resistant / Chemical Resistant | Class 4 D | G60 | |
2.93 € | 1 | Available | 5 Days | 64.4 | 3.1 | [Fluororubber] Fluororubber | Mineral Oil Resistant / Heat Resistant / Chemical Resistant | Class 4 D | G65 | |
2.93 € | 1 | Available | 5 Days | 69.4 | 3.1 | [Fluororubber] Fluororubber | Mineral Oil Resistant / Heat Resistant / Chemical Resistant | Class 4 D | G70 | |
3.41 € 1.30 € | 1 | Available |
Same day
Stock | 74.4 | 3.1 | [Fluororubber] Fluororubber | Mineral Oil Resistant / Heat Resistant / Chemical Resistant | Class 4 D | G75 | |
3.41 € | 1 | Available | 5 Days | 79.4 | 3.1 | [Fluororubber] Fluororubber | Mineral Oil Resistant / Heat Resistant / Chemical Resistant | Class 4 D | G80 | |
6.40 € | 1 | Available | 5 Days | 104.4 | 3.1 | [Fluororubber] Fluororubber | Mineral Oil Resistant / Heat Resistant / Chemical Resistant | Class 4 D | G105 | |
7.12 € | 1 | Available | 5 Days | 119.4 | 3.1 | [Fluororubber] Fluororubber | Mineral Oil Resistant / Heat Resistant / Chemical Resistant | Class 4 D | G120 | |
9.32 € | 1 | Available | 5 Days | 144.4 | 3.1 | [Fluororubber] Fluororubber | Mineral Oil Resistant / Heat Resistant / Chemical Resistant | Class 4 D | G145 | |
10.77 € | 1 | Available | 5 Days | 169.3 | 5.7 | [Fluororubber] Fluororubber | Mineral Oil Resistant / Heat Resistant / Chemical Resistant | Class 4 D | G170 | |
0.25 € | 1 | 5 Days | 24.4 | 3.1 | Silicon Rubber | Heat Resistant / Cold Resistant | - | G25 | ||
0.34 € | 1 | 5 Days | 29.4 | 3.1 | Silicon Rubber | Heat Resistant / Cold Resistant | - | G30 | ||
0.60 € | 1 | 5 Days | 34.4 | 3.1 | Silicon Rubber | Heat Resistant / Cold Resistant | - | G35 | ||
0.45 € | 1 | 5 Days | 39.4 | 3.1 | Silicon Rubber | Heat Resistant / Cold Resistant | - | G40 | ||
0.50 € | 1 | 5 Days | 44.4 | 3.1 | Silicon Rubber | Heat Resistant / Cold Resistant | - | G45 | ||
0.48 € | 1 | 5 Days | 49.4 | 3.1 | Silicon Rubber | Heat Resistant / Cold Resistant | - | G50 | ||
0.74 € | 1 | 5 Days | 54.4 | 3.1 | Silicon Rubber | Heat Resistant / Cold Resistant | - | G55 | ||
1.31 € | 1 | 5 Days | 59.4 | 3.1 | Silicon Rubber | Heat Resistant / Cold Resistant | - | G60 | ||
1.13 € | 1 | 5 Days | 64.4 | 3.1 | Silicon Rubber | Heat Resistant / Cold Resistant | - | G65 | ||
0.78 € | 1 | 5 Days | 69.4 | 3.1 | Silicon Rubber | Heat Resistant / Cold Resistant | - | G70 | ||
0.92 € | 1 | 5 Days | 74.4 | 3.1 | Silicon Rubber | Heat Resistant / Cold Resistant | - | G75 | ||
0.95 € | 1 | 5 Days | 79.4 | 3.1 | Silicon Rubber | Heat Resistant / Cold Resistant | - | G80 | ||
0.57 € | 1 | 5 Days | 24.4 | 3.1 | Silicon Rubber | Heat Resistant | - | G25 | ||
0.75 € | 1 | 5 Days | 29.4 | 3.1 | Silicon Rubber | Heat Resistant | - | G30 | ||
0.88 € | 1 | 5 Days | 34.4 | 3.1 | Silicon Rubber | Heat Resistant | - | G35 | ||
0.95 € | 1 | 5 Days | 39.4 | 3.1 | Silicon Rubber | Heat Resistant | - | G40 |
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Basic information
| Type | G Series |
|---|
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Basic Attributes
-
Inner Dia. do (or d)(mm)
-
Wire Dia. W(mm)
-
Material
- Nitrile Rubber
- Silicon Rubber
- Fluororubber
-
Application
- Mineral Oil Resistant
- Heat Resistant
- Abrasion Resistance
- High Pressure Use
- Chemical Resistant
- Cold Resistant
-
JIS Nominal Number
-
Type
- NGA
- NGB
- NGF
- NGSK
- NGSW
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