O-RING · NBR
O-ring 145 × 4 mm · NBR 60 · 21B6
O-ring with an inside diameter of 145 mm and a cross-section of 4 mm (145x4), in NBR 60 Shore A to NF L 17-121 (material code 21B6). Nominal outside diameter 153 mm, weight 7.059 g.
| Oringaero reference | OA-21B6-145X4 |
|---|---|
| Material code | 21B6 — NBR |
| Material standard | NF L 17-121 |
| Hardness | 60 Shore A |
| Inside Ø | 145 ± 1.02 mm |
| Cross-section | 4 ± 0.10 mm |
| Nominal outside Ø | 153 mm |
| Colour | Black |
| Weight | 7.059 g |
| Continuous temperature¹ | −40 to +100 °C |
| Short-term temperature¹ | −40 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 17-121; 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
Fuels.
Values measured at qualification of compound 21B6: tensile strength 13.2 MPa, elongation at break 412 %, compression set 10.2 % (70 h at 100 °C), density 1.2 g/cm³.

