HNBR Parker KA174-75 O-Ring, Size: -004
Material: HNBR Parker KA174-75 O-Ring
Size: AS568 -004 O-Ring
Part Number: KA174-75-OR-004
Parker Seal® (Parker)
KA174-75
HNBR (Hydrogenated Nitrile)
75
Shore A
General Purpose Material
Color: Black
Detailed Description
KA174-75-OR-004 is a Black, 75 Shore A, HNBR (Hydrogenated Nitrile) O-Ring made from Parker Seal® (Parker). Parker Seal® (Parker) KA174-75 is manufactured with the following features & specifications: General Purpose Material. KA174-75-OR-004 is AS568 size -004 O-Ring also referred to as 1.78mm (Cross Sectional Diameter (CS)) x 1.78mm (Inside Diameter (ID)).
Material: HNBR Parker KA174-75 O-Ring
Size: AS568 -004, 1.78mm CS X 1.78mm ID (0.070" CS X 0.070" ID)
| Technical Specification | Value |
|---|---|
| Compound Number | KA174-75 |
| Brand | Parker Seal® (Parker) |
| Material | HNBR (Hydrogenated Nitrile) |
| Color | Black |
| Durometer | 75 Shore A |
| High Temperature | 149 °C / 300 °F |
| Low Temperature | -32 °C / -26 °F |
| Geometry Specifications | |
| Cross Sectional Geometry | O-Ring |
| Size Standard | AS568 |
| Size | -004 |
| Cross Section (CS) | 1.78 mm / 0.070 in |
| Inside Diameter (ID) | 1.78 mm / 0.070 in |
Parker’s KA174-75 is a 75 Shore A black HNBR compound engineered for sealing applications that require improved heat resistance, oil compatibility, and durability compared to standard nitrile materials. With a service temperature range of approximately -25°F to 300°F, and short-term capability up to 325°F, it performs reliably in petroleum-based hydraulic oils, motor oils, transmission fluids, and greases. The hydrogenated nitrile formulation also provides compatibility with R134a refrigerant, water, glycol, steam, and HFA, HFB, and HFC hydraulic fluids, along with strong resistance to ozone, aging, and weathering. Its balanced mechanical properties support low compression set and stable sealing performance in both static and moderate dynamic applications.
KA174-75 is commonly used in automotive, industrial, and fluid power systems where exposure to oils, hydraulic fluids, and temperature cycling is expected. It is not recommended for polar solvents such as ketones and esters, strong acids, chlorinated hydrocarbons, or automotive and aircraft brake fluids. This HNBR compound offers a dependable solution for mixed oil and water-based environments requiring extended service life. Canyon Components offers equivalent HNBR materials designed to match the performance characteristics of Parker KA174-75 for oil, hydraulic fluid, and refrigerant sealing applications.
Common relevant keywords:
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