SSP supplies MIL-R-25988 fluorosilicones for military gaskets. Choose specification-grade fluorosilicone elastomers in various types, classes, and grades.
MIL-DTL-25988CÂ is a U.S. military specification (MIL-SPEC) for fluorosilicones that resist oil and fuel. This MIL-SPEC divides compliant compounds into two classes: Type 1 for O-Rings, and Type 2 for molded parts, sheets, strips, and extruded shapes. Within each Type, there are different Classes. For example, Class 1 compounds are for general-purpose use. Class 2 materials are high-strength, general purpose elastomers.
MIL-R-25988 Fluorosilicones from SSP
This table describes SSP’s MIL-DTL-25988C fluorosilicones. These products meet the requirements of MIL-R-25988C Type 2, Class 2. All fluorosilicones are peroxide-catalyzed, heat-cured, and supplied as ready-to-mold compounds or compression-molded sheet stock.
Elastomer | MIL-DTL-25988C Callouts | Product Specifications | |||||
Product No. | Type | Class | Grade | Durometer (Shore A) | Tensile Strength (psi) | Elongation (%) | Tear B (ppi/min) |
SSP-267 | 2 | 2 | 40 | 40 | 1500 | 500 | 130 |
SSP-338 | 2 | 2 | 50 | 50 | 1300 | 500 | 225 |
SSP-083* | 2 | 2 | 60 | 60 | 1000 | 350 | 150 |
SSP-100 | 2 | 2 | 70 | 70 | 1000 | 250 | 128 |
SSP-372 | 2 | 2 | 80 | 80 | 800 | 170 | 102 |
 |  |  |  |  |  |  |  |
SSP-338A | 2 | 2 | 50 | 50 | 1300 | 500 | 225 |
SSP-082 | 2 | 2 | 75 | 75 | 900 | 150 | 100 |
 * SSP-083 also meets SAE AMS 3326 requirements for fuel and oil resistant fluorosilicones.
