
Image shown is representative and may differ from the actual product in size, proportions, and color shade
0.210 in
(5.33 mm)
2.225 in
(56.52 mm)

FKM Parker HF391-75 X-Ring, Size: -331
Material: FKM Parker HF391-75 X-Ring
Size: AS568 -331 X-Ring
Part Number: HF391-75-XR-331
Parker Seal® (Parker)
HF391-75
FKM (Viton®)
75
Shore A
HiFluor
Color: Blue
Detailed Description
HF391-75-XR-331 is a Blue, 75 Shore A, FKM (Viton®) X-Ring made from Parker Seal® (Parker). It is a 75 durometer FKM (Viton®). Parker Seal® (Parker) HF391-75 is manufactured with the following features & specifications: HiFluor. HF391-75-XR-331 is AS568 size -331 X-Ring also referred to as 5.33mm (Cross Sectional Diameter (CS)) x 56.52mm (Inside Diameter (ID)). Material: 75 Durometer FKM Parker HF391-75 X-Ring Size: AS568 -331, 5.33mm CS X 56.52mm ID (0.210" CS X 2.225" ID)
| Technical Specification | Value |
|---|---|
| Compound Number | HF391-75 |
| Brand | Parker Seal® (Parker) |
| Material | FKM (Viton®) |
| Color | Blue |
| Durometer | 75 Shore A Hardness |
| High Temperature | 191 °C / 376 °F |
| Low Temperature | -26 °C / -15 °F |
| Geometry Specifications | |
| Cross Sectional Geometry | X-Ring |
| Size Standard | AS568 |
| Size | -331 |
| Cross Section (CS) | 5.33 mm / 0.210 in |
| Inside Diameter (ID) | 56.52 mm / 2.225 in |
| Other Specifications | |
HiFluor | |


