The cherry blossom seal for O-rings is molded from various materials in different sizes, including GS standards and other specifications.
This is a size series derived from the G standard (JIS B2401). Sakura Seal Co., Ltd. supports the appropriate selection of O-rings in both size and material, offering not only general-purpose materials based on JIS standards but also various high-performance materials such as the "Fluoro Power Series," which features Perfluoroelastomer (FFKM) at its peak, and the "Fluoro Up Series," characterized by low adhesion, low friction, low sticking, and low outgassing.
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basic information
The GS standard is a size series derived from the G standard, which is one of the O-ring dimension standards established by the Japanese Industrial Standards (JIS). It is used as O-ring sizes for cylindrical and flat surface fixing in a wide range of fields.
Price information
Prices may vary depending on the material and quantity, so please feel free to contact us.
Delivery Time
P1
※In principle, stock items are available for immediate delivery, but delivery times may vary depending on the material and quantity.
Applications/Examples of results
O-ring (for cylindrical surface fixation and flat surface fixation). Packing, gasket.
Line up（34）
| Model number | overview |
|---|---|
| NBR-70-1 (1A) | The most versatile material made of nitrile rubber, with oil resistance and abrasion resistance. Type A (old JIS standard = JIS B2401:2005). Hardness A70±5. Black. Temperature -30 to 100℃. |
| NBR-90 (1B) | A material made of nitrile rubber, with oil resistance, abrasion resistance, and excellent pressure resistance. Type B (old JIS standard = JIS B2401:2005). Hardness A90±5. Black. Temperature -20 to 100℃. |
| NBR-70-2 (2A) | A material made of nitrile rubber, with excellent oil resistance, suitable for use with fuel oil. Type A (old JIS standard = JIS B2401:2005). Hardness A70±5. Black. Temperature -20 to 100℃. |
| FKM-70 (4D) | A material made of fluorine rubber (type 2), with excellent heat resistance, chemical resistance, and oil resistance. Type D (old JIS standard = JIS B2401:2005). Hardness A70±5. Black. Temperature -20 to 230℃. |
| FKM-90 | A material made of fluorine rubber (type 2), with excellent heat resistance, chemical resistance, oil resistance, and pressure resistance. Hardness A90±5. Black. Temperature -10 to 230℃. |
| VMQ-70 (4C) | A material made of silicone rubber, with excellent heat resistance, cold resistance, and weather resistance. Type C (old JIS standard = JIS B2401:2005). Hardness A70±5. Red. Temperature -50 to 200℃. |
| VMQ-50 | A material made of silicone rubber, with excellent heat resistance, cold resistance, and weather resistance. Hardness A50±5. Translucent color. Temperature -50 to 200℃. |
| EPDM-70 | A material made of ethylene propylene rubber, with excellent water resistance, chemical resistance, and cold resistance. Hardness A70±5. Black. Temperature -40 to 130℃. |
| CR-70 | A material made of chloroprene rubber, with oil resistance and weather resistance. Hardness A70±5. Black. Temperature -30 to 100℃. |
| U-70 | A material made of urethane rubber, with oil resistance and excellent pressure resistance. Hardness A70±5. Red. Temperature 0 to 100℃. |
| HNBR-70 | A material made of hydrogenated nitrile rubber, with heat resistance, weather resistance, oil resistance, and excellent pressure resistance. Hardness A70±5. Black. Temperature -30 to 150℃. |
| PTFE | A material made of fluororesin, with excellent heat resistance, chemical resistance, and surface lubricity, but inferior performance as a gasket compared to rubber. Teflon. White. |
| Fluoro Power FF | A standard material made of perfluoroelastomer, with extremely excellent chemical resistance and good heat resistance. Hardness A80±5. Black. Temperature 0 to 230℃. |
| Fluoro Power FFW | A white material made of perfluoroelastomer, with extremely excellent chemical resistance and good heat resistance. Hardness A75±5. White. Temperature 0 to 230℃. |
| Fluoro Power FFS | A heat-resistant material made of perfluoroelastomer, combining extremely excellent heat resistance and chemical resistance. Hardness A75±5. Black. Temperature 0 to 330℃. |
| Fluoro Power FFN | A heat-resistant non-filler material made of perfluoroelastomer, with extremely excellent heat resistance and chemical resistance. Non-carbon, non-metal. Hardness A70±5. Gray. Temperature 0 to 300℃. |
| Fluoro Power FFHW | A heat-resistant white material made of perfluoroelastomer, with excellent heat resistance and chemical resistance. Hardness A75±5. White. Temperature 0 to 280℃. |
| Fluoro Power FFH90 | A heat-resistant pressure-resistant material made of perfluoroelastomer, combining excellent heat resistance and chemical resistance, with excellent pressure resistance. Hardness A90±5. Black. Temperature 0 to 280℃. |
| Fluoro Power 3F | A standard material made of type 3 fluorine rubber, with excellent heat resistance and chemical resistance, suitable for use with steam and strong acids. Hardness A70±5. Black. Temperature -10 to 200℃. |
| Fluoro Power 3FW | A white material made of type 3 fluorine rubber, with excellent heat resistance and chemical resistance, suitable for use with steam and strong acids. Hardness A70±5. White. Temperature -10 to 200℃. |
| Fluoro Power 3FH | A heat-resistant material made of type 3 fluorine rubber, with excellent heat resistance and chemical resistance, suitable for use with steam and strong acids. Hardness A75±5. Black. Temperature 0 to 250℃. |
| Fluoro Power 3F90 | A pressure-resistant material made of type 3 fluorine rubber, with excellent heat resistance, pressure resistance, and chemical resistance, suitable for use with steam and strong acids. Hardness A90±5. Black. Temperature 0 to 200℃. |
| Fluoro Power DL | A cold-resistant material made of type 3 fluorine rubber, with excellent heat resistance, cold resistance, and chemical resistance, suitable for use with steam and strong acids. Hardness A70±5. Black. Temperature -35 to 200℃. |
| Fluoro Power DD | A conductive material made of type 3 fluorine rubber, with excellent heat resistance, cold resistance, and chemical resistance, suitable for use with steam and strong acids. Anti-static effect. Hardness A80±5. Black. Temperature -35 to 200℃. |
| Fluoro Power DEB | A standard material made of Viton ETP, with excellent chemical resistance, suitable for use with strong alkalis, strong acids, and polar solvents. Hardness A75±5. Black. Temperature 0 to 200℃. |
| Fluoro Power DEW | A white material made of Viton ETP, with excellent chemical resistance, suitable for use with strong alkalis, strong acids, and polar solvents. Hardness A70±5. White. Temperature 0 to 180℃. |
| Fluoro Power AF | A standard material made of Aflas, with excellent chemical resistance, particularly excellent amine resistance, and suitable for use with strong alkalis and strong acids. Radiation resistance. Hardness A70±5. Black. Temperature 0 to 200℃. |
| Fluoro Power AF90 | A pressure-resistant material made of Aflas, with excellent chemical resistance, particularly excellent amine resistance, and suitable for use with strong alkalis and strong acids. Radiation resistance. Hardness A90±5. Black. Temperature 0 to 200℃. |
| Fluoro Power FQ | A material made of fluorosilicone, with extremely excellent cold resistance and excellent oil resistance, suitable for use with fuel oil. Hardness A70±5. Blue. Temperature -70 to 200℃. |
| Fluoro Power DPR | A special material combining fluororesin and fluorine rubber, with non-filler and excellent plasma resistance, while keeping the price low. Hardness A65±5. Black. Temperature 0 to 200℃. |
| Fluoro Up D | A special material made of fluorine rubber, with heat resistance, chemical resistance, low adhesion, low outgassing, and excellent high vacuum resistance. Hardness A70±5. Black. Temperature -20 to 230℃. |
| Fluoro Up K | A special material made of fluorine rubber, with heat resistance, chemical resistance, low adhesion, and low friction. Hardness A70±5. Black. Temperature 0 to 230℃. |
| Fluoro Up S | A special material made of fluorine rubber, with heat resistance, chemical resistance, low adhesion, low friction, low sticking, and low outgassing. Hardness A70±5. Black. Temperature 0 to 230℃. |
| Fluoro Up V | A special material made of fluorine rubber, with heat resistance, chemical resistance, low adhesion, low friction, and low sticking, while also excelling in low outgassing and high vacuum resistance. Hardness A75±5. Black. Temperature -20 to 250℃. |
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Company information
Sakura Seal Co., Ltd. is a seal product manufacturer that specializes in the production and sale of O-rings, oil seals, and various types of gaskets. We particularly excel in molded products made from fluororubber, and we offer a wide range of high-performance materials with special properties, including not only general-purpose FKM materials but also FFKM materials. With our deep knowledge of various seal products, we maintain a stock of over 20,000 types, even within Tokyo, and strive to remain an organization that provides high convenience for industries and society.
