SIL Parker SM355-75 O-Ring, Size: -020
Material: SIL Parker SM355-75 O-Ring
Size: AS568 -020 O-Ring
Part Number: SM355-75-OR-020
Parker Seal® (Parker)
SM355-75
Silicone (VMQ)
75
Shore A
AMS 7267
FDA Compliant
USP Class VI
Color: Red
Detailed Description
SM355-75-OR-020 is a Red, 75 Shore A, Silicone (VMQ) O-Ring made from Parker Seal® (Parker). Parker Seal® (Parker) SM355-75 is manufactured with the following features & specifications: AMS 7267, FDA Compliant, USP Class VI. SM355-75-OR-020 is AS568 size -020 O-Ring also referred to as 1.78mm (Cross Sectional Diameter (CS)) x 21.95mm (Inside Diameter (ID)).
Material: SIL Parker SM355-75 O-Ring
Size: AS568 -020, 1.78mm CS X 21.95mm ID (0.070" CS X 0.864" ID)
| Technical Specification | Value |
|---|---|
| Compound Number | SM355-75 |
| Brand | Parker Seal® (Parker) |
| Material | Silicone (VMQ) |
| Color | Red |
| Durometer | 75 Shore A |
| High Temperature | 232 °C / 450 °F |
| Low Temperature | -51 °C / -60 °F |
| Geometry Specifications | |
| Cross Sectional Geometry | O-Ring |
| Size Standard | AS568 |
| Size | -020 |
| Cross Section (CS) | 1.78 mm / 0.070 in |
| Inside Diameter (ID) | 21.95 mm / 0.864 in |
| Other Specifications | |
AMS 7267 | |
FDA Compliant | |
USP Class VI | |
USP <87> | |
Parker® SM355-75 is a rust colored VMQ silicone elastomer compound with a nominal hardness of 75 Shore A, developed to meet the qualification requirements of AMS 7267 for high reliability sealing applications. This silicone material is commonly used for O-rings, gaskets, and molded sealing components that require excellent temperature stability and long term environmental resistance. Parker SM355-75 is also manufactured to meet FDA and USP Class VI requirements, including USP <87>, making it suitable for regulated medical, pharmaceutical, and sanitary equipment applications.
With a broad operating temperature range of approximately -60°F to 450°F, this VMQ silicone compound performs well in environments exposed to hot air, weathering, ozone, water, glycols, alcohols, dilute acids, and bases. These properties make the material well suited for O-rings and gaskets used in medical devices, food processing equipment, and laboratory systems where temperature stability and material purity are important. Like many silicone elastomers, SM355-75 is not recommended for applications involving petroleum based oils, hydrocarbon fuels, chlorinated solvents, or highly dynamic sealing environments.
Datasheet, TDS, Test Report, MTR, MSDS, SDS