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O-RING · NBR

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 referenceOA-20A8-155X7
Material code20A8 — NBR
Material standardNF L 17-120
Hardness80 Shore A
Inside Ø155 ± 1.02 mm
Cross-section7 ± 0.15 mm
Nominal outside Ø169 mm
ColourBlack
Weight25.266 g
Continuous temperature¹−30 to +120 °C
Short-term temperature¹−30 to +140 °C
TolerancesISO 3601-1:2012 — class A, annex A
Surface imperfectionsISO 3601-3:2005 + Amd 1:2018 — grade N
Reference5331-14-594-7057

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.

Tolerances, surface imperfections and storage →