O-RING · NBR
O-ring 40.2 × 5.3 mm · NBR 60 · 20B6
O-ring with an inside diameter of 40.2 mm and a cross-section of 5.3 mm (40.2x5.3), in NBR 60 Shore A to NF L 17-120 (material code 20B6). Nominal outside diameter 50.8 mm, weight 3.942 g.
| Oringaero reference | OA-20B6-40.2X5.3 |
|---|---|
| Material code | 20B6 — NBR |
| Material standard | NF L 17-120 |
| Hardness | 60 Shore A |
| Inside Ø | 40.2 ± 0.36 mm |
| Cross-section | 5.3 ± 0.13 mm |
| Nominal outside Ø | 50.8 mm |
| Colour | Black |
| Weight | 3.942 g |
| Continuous temperature¹ | −50 to +100 °C |
| Short-term temperature¹ | −50 to +120 °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
Hydraulics; low-temperature variant.
Values measured at qualification of compound 20B6: tensile strength 14.2 MPa, elongation at break 342 %, compression set 19.3 % (70 h at 100 °C), density 1.25 g/cm³.

