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| Article number | 188644 |
| Equal to | Kalrez� 7090 - Evolast N9EX |
| Alternative Sizes | |
| AS568 Size Chart Explanation | AS 449 |
| DIN 3771 Size Chart Explanation | 253.4 x 7 |
| ISO 3601 Size Chart | 253.4x7 |
| Size in text | two hundred and fifty three comma forty by seven zero |
| SMS 1586 Size chart | 253.4x7 |
| Export specifications | |
| Country of Origin | IT |
| Customs Code Explanation | 40169300 |
| General Specifications | |
| Color | Black |
| Hardness Explanation | 90 Shore A |
| Material | FFKM - FFPM |
| Approval | None |
| CS (Cross Section) Explanation | 7 mm |
| ID (Inner diameter) Explanation | 253.4 mm |
| Seal type | O-ring |
| Other Specifications | |
| Alternative names | FFPM � Dupont Kalrez |
| Chemical Name Explanation | Perfluoroelastomer |
| Description 2 | O-ring FFKM - FFPM 253.4x7 |
| Product name | O-ring 253.4x7 FFKM - FFPM |
| Trade names | Evolast� - Chemraz� - Simriz� - Kalrez� - Spectrum - Triazinico - Isolast� - Parofluor� - Fluorez - Perlast� - HPSealing� - Perfluor� - Polymax |
| Technical Specifications | |
| Compression Set Explanation | 18 % |
| Specific Gravity Explanation | 1,98 (+/- 0,04) g/cm3 |
| Temperature Max Explanation | 340 ºC |
| Temperature Min Explanation | -15 ºC |
| Tensile Strength Explanation | 20,6 MPa |
| Ultimate Elongation Explanation | 110 % |
| attachment |  Material Datasheet F909ZEX |
This FFKM - FFPM O-Ring is 253.4 x 7mm and in the color Black. The Hardness of this O-RIng 253.4x7 - FFKM - FFPM - 90 Shore A - Black - ORS188644 is 90 Shore A.The alternative names of the compound are FFPM � Dupont Kalrez and they are mostly produced by Evolast� - Chemraz� - Simriz� - Kalrez� - Spectrum - Triazinico - Isolast� - Parofluor� - Fluorez - Perlast� - HPSealing� - Perfluor� - Polymax. The O-ring is commonly used in and has an operating temperature range from -15 ºC to 340 ºC. O-rings 651756 are indicated as 188644 and have a DIN 3771 Size of 253.4 x 7. This item is equal to Kalrez� 7090 - Evolast N9EX and has an None Approval. The chemical name of this Oring is Perfluoroelastomer.
All items marked with a * are required.
