FKM VT90BK30 O-Ring, Size: -349
Material: FKM VT90BK30 O-Ring
Size: AS568 -349 O-Ring
Part Number: VT90BK30-OR-349
VT90BK30
FKM (Viton®)
90
Shore A
FKM Type GLT (Low Temp Viton®)
Low Temperature Material
Color: Black
Detailed Description
VT90BK30-OR-349 is a Black, 90 Shore A, FKM (Viton®) O-Ring, a FKM Type GLT (Low Temp Viton®) product. VT90BK30 is manufactured with the following features & specifications: Low Temperature Material. VT90BK30-OR-349 is AS568 size -349 O-Ring also referred to as 5.33mm (Cross Sectional Diameter (CS)) x 113.67mm (Inside Diameter (ID)).
Material: FKM VT90BK30 O-Ring
Size: AS568 -349, 5.33mm CS X 113.67mm ID (0.210" CS X 4.475" ID)
| Technical Specification | Value |
|---|---|
| Compound Number | VT90BK30 |
| Material | FKM (Viton®) |
| Subtype | FKM Type GLT (Low Temp Viton®) |
| Color | Black |
| Durometer | 90 Shore A |
| High Temperature | 225 °C / 437 °F |
| Low Temperature | -40 °C / -40 °F |
| Geometry Specifications | |
| Cross Sectional Geometry | O-Ring |
| Size Standard | AS568 |
| Size | -349 |
| Cross Section (CS) | 5.33 mm / 0.210 in |
| Inside Diameter (ID) | 113.67 mm / 4.475 in |
VT90BK30 is a 90 shore A black FKM Type GLT compound engineered for applications requiring both high hardness and improved low temperature performance. This material provides excellent resistance to explosive decompression due to its higher durometer, along with strong chemical resistance to fuels, oils, and aggressive industrial media. It maintains reliable sealing performance across a service temperature range of -40°C to 225°C, making it well suited for O-rings and gaskets used in oil and gas, aerospace, and high pressure systems. VT90BK30 meets ASTM D2000 M3HK914 requirements and can be compared to Parker GLT-type FKM materials when evaluating equivalent low temperature fluorocarbon compounds.
FKM, commonly referred to as Viton®, is a high performance fluoroelastomer widely used in O-rings and gaskets where resistance to heat, chemicals, and fuels is essential. GLT-type FKM compounds are specifically formulated to improve low temperature flexibility compared to standard FKM, while still maintaining strong high temperature stability and compression set resistance. These materials are commonly used in demanding environments such as oil and gas, chemical processing, and aerospace systems, particularly where both thermal cycling and chemical exposure are present. While highly versatile, FKM materials are generally not recommended for hot water, steam, or certain polar solvents, making proper selection critical for long-term sealing success.
Keywords: VT90BK30, VT 90BK30, VT-90BK30, VT90 BK30, FKM GLT, low temp FKM, 90A fluorocarbon rubber, explosive decompression resistant elastomer, oil and gas O-rings, high pressure gasket material, ASTM D2000 M3HK914, Parker GLT equivalent, chemical resistant seals, Datasheet, TDS, Test Report, MTR, MSDS, SDS