Description
O-Ring 10.82 mm ID x 1.78 mm CS FKM (Viton) 75 ShA — BOLTON SKU 65403.
About the O-Ring 10.82 mm ID x 1.78
This item is a black FKM (Viton) O-ring of circular cross section, size reference 2-013, with a 10.82 mm internal diameter and a 1.78 mm cross-section diameter. FKM is used where the sealed fluid or the service temperature rules out a nitrile compound. What distinguishes this variant from its harder siblings is the 75 Shore A compound: a mid-hardness grade that seats readily, tolerates ordinary groove surface finishes and is the default choice for general static and light dynamic sealing before extrusion resistance becomes the governing concern. The declared service window is -15 °C to +180 °C. The 1.78 mm section is one of the finest standard sections in common use, so the groove depth and squeeze tolerance on the mating parts should be checked carefully. Quote the o-rings 10 82mm id x 1.78 mm section together with the 75 Shore A hardness, since the same size is also produced in harder compounds.
Key specifications
| Attribute | Value |
|---|---|
| Size reference | 2-013 |
| Material | FKM (Viton) |
| Colour | Black |
| Internal diameter | 10.82 mm |
| Cross-section diameter | 1.78 mm |
| Cross-section type | Circular |
| Hardness | 75 Shore A |
| Maximum temperature | 180 °C |
| Minimum temperature | -15 °C |
Typical applications
A small-bore 75 Shore A FKM ring of this size is normally found sealing compact threaded fittings, sensor and transducer bodies, small spool valves, fuel and lubrication line couplings and instrument ports. The modest 10.82 mm internal diameter suits sub-assemblies and line hardware rather than housing covers. Its mid-range hardness makes it a reasonable candidate for slow-moving dynamic duties as well as static face seals, provided the pressure stays within the extrusion limit for the gland.
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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