O-RING · NBR
O-ring 84 × 4 mm · NBR 80 · 20A8
O-ring with an inside diameter of 84 mm and a cross-section of 4 mm (84x4), in NBR 80 Shore A to NF L 17-120 (material code 20A8). Nominal outside diameter 92 mm, weight 4.482 g.
| Oringaero reference | OA-20A8-84X4 |
|---|---|
| Material code | 20A8 — NBR |
| Material standard | NF L 17-120 |
| Hardness | 80 Shore A |
| Inside Ø | 84 ± 0.66 mm |
| Cross-section | 4 ± 0.10 mm |
| Nominal outside Ø | 92 mm |
| Colour | Black |
| Weight | 4.482 g |
| Continuous temperature¹ | −30 to +120 °C |
| Short-term temperature¹ | −30 to +140 °C |
| Tolerances | ISO 3601-1:2012 — class A, annex A |
| Surface imperfections | ISO 3601-3:2005 + Amd 1:2018 — grade N |
¹ Service temperatures to NF L 17-120; the short-term temperature applies to brief exposure.
- Manufacturer: JUNGA Ltd, EN 9100 certified
- Lead time: 2 to 4 weeks depending on quantity
- Packaging: individual bags, labelled to NF L
- Price: on quotation; state the conformity documents you need
Application and inspection
Mineral-based or synthetic-hydrocarbon hydraulic fluids.
Values measured at qualification of compound 20A8: tensile strength 18.3 MPa, elongation at break 225 %, compression set 29.3 % (70 h at 125 °C), density 1.29 g/cm³.