# O-ring 155x7 mm NBR 80 · 20A8 · 5331-14-594-7057

Source: https://oringaero.fr/en/produits/20a8-155x7.html

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# O-ring 155 × 7 mm · NBR 80 · 20A8

O-ring with an inside diameter of 155 mm and a cross-section of 7 mm (155x7), in NBR 80 Shore A to NF L 17-120 (material code 20A8). Nominal outside diameter 169 mm, weight 25.266 g. Reference 5331-14-594-7057.

Oringaero reference | OA-20A8-155X7 | 

Material code | [20A8 — NBR](https://oringaero.fr/en/matieres/20A8.html) | 

Material standard | NF L 17-120 | 

Hardness | 80 Shore A | 

Inside Ø | 155 ± 1.02 mm | 

Cross-section | 7 ± 0.15 mm | 

Nominal outside Ø | 169 mm | 

Colour | Black | 

Weight | 25.266 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 | 

Reference | **5331-14-594-7057** | 

¹ Service temperatures to NF L 17-120; the short-term temperature applies to brief exposure.

QuantityAdd to my request
- 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.

[Tolerances, surface imperfections and storage →](https://oringaero.fr/en/normes.html)

## Explore this material

[Properties and temperatures: 20A8](https://oringaero.fr/en/matieres/20A8.html)
[Browse all dimensions](https://oringaero.fr/en/catalogue/20a8-1.html)
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Adjacent catalogue sizes are not interchangeable; confirm dimensions and suitability.