
Image shown is representative and may differ from the actual product in size, proportions, and color shade
0.275 in
(6.99 mm)
3.975 in
(100.97 mm)

FKM VT90BK59 X-Ring, Size: -421
Material: FKM VT90BK59 X-Ring
Size: AS568 -421 X-Ring
Part Number: VT90BK59-XR-421
VT90BK59
FKM (Viton®)
90
Shore A
Ultra Low Temperature Material
Ultra Low Temperature Material
Color: Black
Detailed Description
VT90BK59-XR-421 is a Black, 90 Shore A, FKM (Viton®) X-Ring. It is a 90 durometer FKM (Viton®). VT90BK59 is manufactured with the following features & specifications: API 6A, Ultra Low Temperature Material, Ultra Low Temperature Material, AED NORSOK M710, AED NACE TM0297, Anti-Explosive Decompression. VT90BK59-XR-421 is AS568 size -421 X-Ring also referred to as 6.99mm (Cross Sectional Diameter (CS)) x 100.97mm (Inside Diameter (ID)). Material: 90 Durometer FKM VT90BK59 X-Ring Size: AS568 -421, 6.99mm CS X 100.97mm ID (0.275" CS X 3.975" ID)

| Technical Specification | Value |
|---|---|
| Compound Number | VT90BK59 |
| Material | FKM (Viton®) |
| Color | Black |
| Durometer | 90 Shore A Hardness |
| High Temperature | 225 °C / 437 °F |
| Low Temperature | -61 °C / -78 °F |
| Geometry Specifications | |
| Cross Sectional Geometry | X-Ring |
| Size Standard | AS568 |
| Size | -421 |
| Cross Section (CS) | 6.99 mm / 0.275 in |
| Inside Diameter (ID) | 100.97 mm / 3.975 in |
| Other Specifications | |
API 6A | |
AED NORSOK M710 | |
AED NACE TM0297 | |
Anti-Explosive Decompression | |


