FKM VT75BK50 O-Ring, Size: -026
Material: FKM VT75BK50 O-Ring
Size: AS568 -026 O-Ring
Part Number: VT75BK50-OR-026
VT75BK50
FKM (Viton®)
75
Shore A
FKM Type XLT (Extreme Low Temp Viton®)
Ultra Low Temperature Material
General Purpose Material
Color: Black
Detailed Description
VT75BK50-OR-026 is a Black, 75 Shore A, FKM (Viton®) O-Ring, a FKM Type XLT (Extreme Low Temp Viton®) product. VT75BK50 is manufactured with the following features & specifications: Ultra Low Temperature Material, General Purpose Material. VT75BK50-OR-026 is AS568 size -026 O-Ring also referred to as 1.78mm (Cross Sectional Diameter (CS)) x 31.47mm (Inside Diameter (ID)).
Material: FKM VT75BK50 O-Ring
Size: AS568 -026, 1.78mm CS X 31.47mm ID (0.070" CS X 1.239" ID)

| Technical Specification | Value |
|---|---|
| Compound Number | VT75BK50 |
| Material | FKM (Viton®) |
| Subtype | FKM Type XLT (Extreme Low Temp Viton®) |
| Color | Black |
| Durometer | 75 Shore A |
| High Temperature | 225 °C / 437 °F |
| Low Temperature | -48 °C / -54 °F |
| Geometry Specifications | |
| Cross Sectional Geometry | O-Ring |
| Size Standard | AS568 |
| Size | -026 |
| Cross Section (CS) | 1.78 mm / 0.070 in |
| Inside Diameter (ID) | 31.47 mm / 1.239 in |
VT75BK50 is a black FKM Type XLT fluoroelastomer engineered for extreme low temperature sealing applications involving O-rings, gaskets, and custom molded elastomer components. This compound features a hardness of approximately 75 Shore A and is designed to maintain flexibility and sealing reliability where conventional fluorocarbon materials may become too stiff. FKM XLT materials are commonly selected for sealing systems that require both chemical resistance and extended low temperature performance.
VT75BK50 provides excellent resistance to fuels, oils, and a wide range of industrial chemicals while also offering strong resistance to weathering, ozone, and aging. The recommended service temperature range is -48°C to 225°C (-54°F to 437°F) with excursions down to approximately -60°C, supporting reliable sealing performance in demanding environments. This material meets AMS 7379 requirements and is often used for O-rings, gaskets, and sealing components in aerospace systems, chemical processing equipment, and other industrial applications that require low temperature FKM elastomer performance.
Keywords: Datasheet, TDS, Test Report, MTR, MSDS, SDS


