Description
O-Ring 34.59 mm ID x 2.62 mm CS FKM (Viton) 90 ShA — BOLTON SKU 65401.
About the O-Ring 34.59 mm ID x 2.62
This is a black FKM (Viton) O-ring with a circular cross section, catalogued under size reference 2-126, with an internal diameter of 34.59 mm and a cross-section diameter of 2.62 mm. FKM is a fluoroelastomer chosen where a nitrile seal would not survive the fluid or the temperature. The specific point of this variant is its 90 Shore A hardness: a 90 ShA compound is noticeably stiffer than the common 70 or 75 ShA grades, which raises resistance to extrusion through the clearance gap at higher pressure but demands more squeeze force to seat and is less forgiving of surface finish. The stated service range for this item is -15 °C to +180 °C. With a 2.62 mm section on a 34.59 mm bore, this is a mid-size seal for a housing groove rather than a small instrument fitting. Specify the o-ring 34 59mm id x 2.62 mm section together with the 90 Shore A hardness, since the same size is also produced in softer compounds.
Key specifications
| Attribute | Value |
|---|---|
| Size reference | 2-126 |
| Material | FKM (Viton) |
| Colour | Black |
| Internal diameter | 34.59 mm |
| Cross-section diameter | 2.62 mm |
| Cross-section type | Circular |
| Hardness | 90 Shore A |
| Maximum temperature | 180 °C |
| Minimum temperature | -15 °C |
Typical applications
A 90 Shore A FKM ring of this diameter is normally specified for higher-pressure static face and bore seals — hydraulic manifold ports, valve bodies, actuator end caps and pump housings — where a softer compound would begin to extrude into the gland clearance. The 180 °C ceiling makes it suitable for hot hydraulic and fuel-side duties, and the -15 °C lower limit means it should not be selected for cold-soak applications without checking the low-temperature requirement first.
Supplied by BOLTON Technical Equipment Supplies against request for quotation. Add this item to your RFQ basket to request pricing, lead time and documentation requirements (e.g. CoC, datasheets or test reports where applicable).
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