# O-ring 8.9x1.9 mm NBR 70 · 20A7 · 5331-14-452-5053

Source: https://oringaero.fr/en/produits/20a7-8-9x1-9.html

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1. O-ring2. Drawing[Open the PDF drawing ↗](https://oringaero.fr/plans/Plan_20a7-8-9x1-9_8.9x1.9_20A7.pdf)O-RING · NBR

# O-ring 8.9 × 1.9 mm · NBR 70 · 20A7

O-ring with an inside diameter of 8.9 mm and a cross-section of 1.9 mm (8.9x1.9), in NBR 70 Shore A to NF L 17-120 (material code 20A7). Nominal outside diameter 12.7 mm, weight 0.121 g. Reference 5331-14-452-5053.

Oringaero reference | OA-20A7-8.9X1.9 | 

Material code | 20A7 — NBR | 

Material standard | NF L 17-120 | 

Hardness | 70 Shore A | 

Inside Ø | 8,9 ± 0,13 mm | 

Cross-section | 1,9 ± 0,08 mm | 

Nominal outside Ø | 12,7 mm | 

Colour | Black | 

Weight | 0.121 g | 

Continuous temperature¹ | −30 à +120 °C | 

Short-term temperature¹ | −30 à +140 °C | 

Tolerances | ISO 3601-1:2012 — class A, annex A | 

Surface imperfections | ISO 3601-3:2005 + Amd 1:2018 — grade N | 

Reference | **5331-14-452-5053** | 

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 20A7: tensile strength 16.5 MPa, elongation at break 348 %, compression set 23.2 % (70 h at 125 °C), density 1.26 g/cm³.

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

## Explore this material

[Properties and temperatures: 20A7](https://oringaero.fr/en/matieres/20A7.html)
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Adjacent catalogue sizes are not interchangeable; confirm dimensions and suitability.