Finer Power NBR 70 O-Ring, inside diameter - id (mm) 8
The price shown is for the pack.
Available
NBR (nitrile rubber) 70 durometer metric O-rings with a 4mm cross section.
An O-ring seals a joint by sitting in a groove and being squeezed between two surfaces, and nitrile rubber is a common choice for oils, fuels and hydraulic fluids. The part number reads MOR, the inside diameter, X and the cross section, so MOR62X4 is 62mm inside diameter by 4mm cross section. Measured dimensions and tolerances come in each part number.
Where this product is used
- Sealing flanges, covers and housings in machinery
- Sealing hydraulic and pneumatic fittings, cylinders and valves
- Sealing pump, gearbox and filter housings
- Replacing worn or damaged O-rings during maintenance
Features
- Nitrile rubber (NBR), 70 durometer
- 59 sizes, 4 to 150mm inside diameter
- Cross section 4mm
- Measured dimensions and tolerances for every part number
- Pack quantities of 10, by size
Key specifications
| Specification | Detail |
|---|---|
| Material | Nitrile rubber (NBR) |
| Hardness | 70 durometer |
| Series | Metric (MOR) |
| Cross section | 4mm |
| Inside diameter | 4 to 150mm |
| Sizes | 59 part numbers |
Sizes available
| Part number | ID (mm) | Cross section (mm) | ID (in) | Pack |
|---|---|---|---|---|
| MOR4X4 | 4 ± 0.14 | 4 ± 0.1 | 0.158 ± 0.006 | 10 |
| MOR6X4 | 6 ± 0.15 | 4 ± 0.1 | 0.236 ± 0.006 | 10 |
| MOR8X4 | 8 ± 0.16 | 4 ± 0.1 | 0.315 ± 0.006 | 10 |
| MOR10X4 | 10 ± 0.17 | 4 ± 0.1 | 0.394 ± 0.007 | 10 |
| MOR12X4 | 12 ± 0.19 | 4 ± 0.1 | 0.472 ± 0.008 | 10 |
| MOR14X4 | 14 ± 0.19 | 4 ± 0.1 | 0.551 ± 0.008 | 10 |
| MOR16X4 | 16 ± 0.2 | 4 ± 0.1 | 0.63 ± 0.008 | 10 |
| MOR18X4 | 18 ± 0.21 | 4 ± 0.1 | 0.709 ± 0.008 | 10 |
| MOR20X4 | 20 ± 0.22 | 4 ± 0.1 | 0.787 ± 0.009 | 10 |
| MOR22X4 | 22 ± 0.24 | 4 ± 0.1 | 0.866 ± 0.009 | 10 |
| MOR24X4 | 24 ± 0.24 | 4 ± 0.1 | 0.945 ± 0.009 | 10 |
| MOR26X4 | 26 ± 0.26 | 4 ± 0.1 | 1.024 ± 0.01 | 10 |
| MOR28X4 | 28 ± 0.28 | 4 ± 0.1 | 1.102 ± 0.011 | 10 |
| MOR30X4 | 30 ± 0.29 | 4 ± 0.1 | 1.181 ± 0.011 | 10 |
| MOR32X4 | 32 ± 0.32 | 4 ± 0.1 | 1.26 ± 0.013 | 10 |
| MOR34X4 | 34 ± 0.33 | 4 ± 0.1 | 1.339 ± 0.013 | 10 |
| MOR36X4 | 36 ± 0.35 | 4 ± 0.1 | 1.417 ± 0.014 | 10 |
| MOR38X4 | 38 ± 0.36 | 4 ± 0.1 | 1.496 ± 0.014 | 10 |
| MOR40X4 | 40 ± 0.38 | 4 ± 0.1 | 1.575 ± 0.015 | 10 |
| MOR42X4 | 42 ± 0.4 | 4 ± 0.1 | 1.654 ± 0.016 | 10 |
| MOR44X4 | 44 ± 0.41 | 4 ± 0.1 | 1.732 ± 0.016 | 10 |
| MOR46X4 | 46 ± 0.43 | 4 ± 0.1 | 1.811 ± 0.017 | 10 |
| MOR48X4 | 48 ± 0.44 | 4 ± 0.1 | 1.89 ± 0.017 | 10 |
| MOR50X4 | 50 ± 0.46 | 4 ± 0.1 | 1.969 ± 0.018 | 10 |
| MOR52X4 | 52 ± 0.47 | 4 ± 0.1 | 2.047 ± 0.019 | - |
| MOR54X4 | 54 ± 0.5 | 4 ± 0.1 | 2.126 ± 0.02 | - |
| MOR56X4 | 56 ± 0.51 | 4 ± 0.1 | 2.205 ± 0.02 | - |
| MOR58X4 | 58 ± 0.52 | 4 ± 0.1 | 2.284 ± 0.021 | - |
| MOR60X4 | 60 ± 0.54 | 4 ± 0.1 | 2.362 ± 0.021 | - |
| MOR62X4 | 62 ± 0.55 | 4 ± 0.1 | 2.441 ± 0.022 | - |
| MOR64X4 | 64 ± 0.58 | 4 ± 0.1 | 2.52 ± 0.023 | - |
| MOR66X4 | 66 ± 0.59 | 4 ± 0.1 | 2.598 ± 0.023 | - |
| MOR68X4 | 68 ± 0.61 | 4 ± 0.1 | 2.677 ± 0.024 | - |
| MOR70X4 | 70 ± 0.62 | 4 ± 0.1 | 2.756 ± 0.024 | - |
| MOR72X4 | 72 ± 0.63 | 4 ± 0.1 | 2.835 ± 0.025 | - |
| MOR74X4 | 74 ± 0.65 | 4 ± 0.1 | 2.913 ± 0.026 | - |
| MOR76X4 | 76 ± 0.66 | 4 ± 0.1 | 2.992 ± 0.026 | - |
| MOR78X4 | 78 ± 0.67 | 4 ± 0.1 | 3.071 ± 0.026 | - |
| MOR80X4 | 80 ± 0.69 | 4 ± 0.1 | 3.15 ± 0.027 | - |
| MOR82X4 | 82 ± 0.7 | 4 ± 0.1 | 3.228 ± 0.028 | - |
| MOR84X4 | 84 ± 0.72 | 4 ± 0.1 | 3.307 ± 0.028 | - |
| MOR86X4 | 86 ± 0.73 | 4 ± 0.1 | 3.386 ± 0.029 | - |
| MOR88X4 | 88 ± 0.74 | 4 ± 0.1 | 3.465 ± 0.029 | - |
| MOR90X4 | 90 ± 0.76 | 4 ± 0.1 | 3.543 ± 0.03 | - |
| MOR92X4 | 92 ± 0.77 | 4 ± 0.1 | 3.622 ± 0.03 | - |
| MOR94X4 | 94 ± 0.78 | 4 ± 0.1 | 3.701 ± 0.031 | - |
| MOR96X4 | 96 ± 0.8 | 4 ± 0.1 | 3.78 ± 0.032 | - |
| MOR98X4 | 98 ± 0.81 | 4 ± 0.1 | 3.858 ± 0.032 | - |
| MOR100X4 | 100 ± 0.82 | 4 ± 0.1 | 3.937 ± 0.032 | - |
| MOR105X4 | 105 ± 0.86 | 4 ± 0.1 | 4.134 ± 0.034 | - |
| MOR110X4 | 110 ± 0.89 | 4 ± 0.1 | 4.331 ± 0.035 | - |
| MOR115X4 | 115 ± 0.93 | 4 ± 0.1 | 4.528 ± 0.037 | - |
| MOR120X4 | 120 ± 0.96 | 4 ± 0.1 | 4.724 ± 0.038 | - |
| MOR125X4 | 125 ± 0.99 | 4 ± 0.1 | 4.921 ± 0.039 | - |
| MOR130X4 | 130 ± 1.03 | 4 ± 0.1 | 5.118 ± 0.041 | - |
| MOR135X4 | 135 ± 1.06 | 4 ± 0.1 | 5.315 ± 0.042 | - |
| MOR140X4 | 140 ± 1.09 | 4 ± 0.1 | 5.512 ± 0.043 | - |
| MOR145X4 | 145 ± 1.13 | 4 ± 0.1 | 5.709 ± 0.045 | - |
| MOR150X4 | 150 ± 1.16 | 4 ± 0.1 | 5.906 ± 0.046 | - |
Choosing the right option
Choose the O-ring from the groove it fits: the inside diameter, the cross section and the part number. To match an existing O-ring, measure the cross section with calipers and the inside diameter with the O-ring relaxed, then pick the closest part number.
Other metric cross sections are under NBR 70 O-Ring, Metric, 3.5mm Cross Section, 5 to 150mm ID; NBR 70 O-Ring, Metric, 3mm Cross Section, 3 to 150mm ID; NBR 70 O-Ring, Metric, 5mm Cross Section, 30 to 150mm ID; NBR 70 O-Ring, Metric, 2.5mm Cross Section, 3 to 49mm ID. For a size that is not stocked, NBR 70 O-Ring Cord, Metric, 1.5 to 16mm Diameter can be cut and joined to make a seal for a non-standard groove.
Nitrile rubber suits many oils, fuels and hydraulic fluids. Check that the fluid and the operating conditions suit nitrile before fitting.
| Option | Part number | SKU |
|---|---|---|
| 4 | MOR4X4 | A0125932 |
| 6 | MOR6X4 | A0125945 |
| 8 | MOR8X4 | A0125954 |
| 10 | MOR10X4 | A0125916 |
| 12 | MOR12X4 | A0125973 |
| 14 | MOR14X4 | A0125989 |
| 16 | MOR16X4 | A0125999 |
| 18 | MOR18X4 | A0126012 |
| 20 | MOR20X4 | A0126022 |
| 22 | MOR22X4 | A0126069 |
| 24 | MOR24X4 | A0126078 |
| 26 | MOR26X4 | A0126086 |
| 28 | MOR28X4 | A0126094 |
| 30 | MOR30X4 | A0126101 |
| 32 | MOR32X4 | A0126108 |
| 34 | MOR34X4 | A0126116 |
| 36 | MOR36X4 | A0126124 |
| 38 | MOR38X4 | A0126132 |
| 40 | MOR40X4 | A0126141 |
| 42 | MOR42X4 | A0126148 |
| 44 | MOR44X4 | A0126156 |
| 46 | MOR46X4 | A0126164 |
| 48 | MOR48X4 | A0126172 |
| 50 | MOR50X4 | A0126181 |
| 52 | MOR52X4 | A0126188 |
| 54 | MOR54X4 | A0126195 |
| 56 | MOR56X4 | A0126202 |
| 58 | MOR58X4 | A0126207 |
| 60 | MOR60X4 | A0126214 |
| 62 | MOR62X4 | A0126219 |
| 64 | MOR64X4 | A0126223 |
| 66 | MOR66X4 | A0126228 |
| 68 | MOR68X4 | A0126232 |
| 70 | MOR70X4 | A0126236 |
| 72 | MOR72X4 | A0126241 |
| 74 | MOR74X4 | A0126245 |
| 76 | MOR76X4 | A0126255 |
| 78 | MOR78X4 | A0126259 |
| 80 | MOR80X4 | A0126263 |
| 82 | MOR82X4 | A0126268 |
| 84 | MOR84X4 | A0126272 |
| 86 | MOR86X4 | A0126277 |
| 88 | MOR88X4 | A0126280 |
| 90 | MOR90X4 | A0126284 |
| 92 | MOR92X4 | A0126289 |
| 94 | MOR94X4 | A0126292 |
| 96 | MOR96X4 | A0126297 |
| 98 | MOR98X4 | A0126301 |
| 100 | MOR100X4 | A0126250 |
| 105 | MOR105X4 | A0126032 |
| 110 | MOR110X4 | A0126036 |
| 115 | MOR115X4 | A0126040 |
| 120 | MOR120X4 | A0126044 |
| 125 | MOR125X4 | A0126048 |
| 130 | MOR130X4 | A0126051 |
| 135 | MOR135X4 | A0126055 |
| 140 | MOR140X4 | A0126058 |
| 145 | MOR145X4 | A0126062 |
| 150 | MOR150X4 | A0126066 |
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NBR 70 O-Ring, Metric, 4 mm Cross Section, 4 to 150 mm ID: 8
SKU: A0125954 | Model: MOR8X4
NBR 70 O-ring MOR8X4, 8mm inside diameter x 4mm cross section, pack of 10. Nitrile rubber, 70 durometer.