Finer Power NBR 70 O-Ring, inside diameter - id (mm) 3
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Available
NBR (nitrile rubber) 70 durometer metric O-rings with a 2.5mm cross section. This page covers the NBR 70 O-Ring, Metric, 2.5mm Cross Section, 3 to 49mm ID, available in 54 inside diameter - id (mm) options: 3, 4, 5, 5.5, 6, 6.5, 7, 8 and 46 more.
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 MOR24X2.5 is 24mm inside diameter by 2.5mm 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
- 54 sizes, 3 to 49mm inside diameter
- Cross section 2.5mm
- Measured dimensions and tolerances for every part number
- Pack quantities of 10 and 25, by size
Key specifications
| Specification | Detail |
|---|---|
| Material | Nitrile rubber (NBR) |
| Hardness | 70 durometer |
| Series | Metric (MOR) |
| Cross section | 2.5mm |
| Inside diameter | 3 to 49mm |
| Sizes | 54 part numbers |
| Pack quantities | 10, 25 by size |
Sizes available
| Part number | ID (mm) | Cross section (mm) | ID (in) | Pack |
|---|---|---|---|---|
| MOR3X2.5 | 3 ± 0.14 | 2.5 ± 0.09 | 0.118 ± 0.006 | 25 |
| MOR4X2.5 | 4 ± 0.14 | 2.5 ± 0.09 | 0.157 ± 0.006 | 25 |
| MOR5X2.5 | 5 ± 0.15 | 2.5 ± 0.09 | 0.197 ± 0.006 | 25 |
| MOR5.5X2.5 | 5.5 ± 0.16 | 2.5 ± 0.09 | 0.217 ± 0.006 | 25 |
| MOR6X2.5 | 6 ± 0.16 | 2.5 ± 0.09 | 0.236 ± 0.006 | 25 |
| MOR6.5X2.5 | 6.5 | 2.5 ± 0.09 | 0.256 | 25 |
| MOR7X2.5 | 7 ± 0.17 | 2.5 ± 0.09 | 0.276 ± 0.007 | 25 |
| MOR8X2.5 | 8 ± 0.17 | 2.5 ± 0.09 | 0.315 ± 0.007 | 25 |
| MOR9X2.5 | 9 ± 0.18 | 2.5 ± 0.09 | 0.354 ± 0.007 | 25 |
| MOR10X2.5 | 10 ± 0.19 | 2.5 ± 0.09 | 0.394 ± 0.007 | 25 |
| MOR10.5X2.5 | 10.5 ± 0.19 | 2.5 ± 0.09 | 0.413 ± 0.007 | 25 |
| MOR11X2.5 | 11 ± 0.2 | 2.5 ± 0.09 | 0.433 ± 0.008 | 25 |
| MOR11.5X2.5 | 11.5 ± 0.2 | 2.5 ± 0.09 | 0.453 ± 0.008 | 25 |
| MOR12X2.5 | 12 ± 0.21 | 2.5 ± 0.09 | 0.472 ± 0.008 | 25 |
| MOR13X2.5 | 13 ± 0.21 | 2.5 ± 0.09 | 0.512 ± 0.008 | 25 |
| MOR14X2.5 | 14 ± 0.22 | 2.5 ± 0.09 | 0.551 ± 0.009 | 25 |
| MOR14.5X2.5 | 14.5 ± 0.22 | 2.5 ± 0.09 | 0.571 ± 0.009 | 25 |
| MOR15X2.5 | 15 ± 0.23 | 2.5 ± 0.09 | 0.591 ± 0.009 | 25 |
| MOR16X2.5 | 16 ± 0.24 | 2.5 ± 0.09 | 0.63 ± 0.009 | 25 |
| MOR17X2.5 | 17 ± 0.24 | 2.5 ± 0.09 | 0.669 ± 0.009 | 25 |
| MOR18X2.5 | 18 ± 0.25 | 2.5 ± 0.09 | 0.709 ± 0.01 | 25 |
| MOR18.5X2.5 | 18.5 | 2.5 | - | 25 |
| MOR19X2.5 | 19 ± 0.26 | 2.5 ± 0.09 | 0.748 ± 0.01 | 25 |
| MOR20X2.5 | 20 ± 0.26 | 2.5 ± 0.09 | 0.787 ± 0.01 | 25 |
| MOR21X2.5 | 21 ± 0.27 | 2.5 ± 0.09 | 0.827 ± 0.011 | 25 |
| MOR22X2.5 | 22 ± 0.28 | 2.5 ± 0.09 | 0.866 ± 0.011 | 25 |
| MOR23X2.5 | 23 ± 0.29 | 2.5 ± 0.09 | 0.906 ± 0.011 | 25 |
| MOR24X2.5 | 24 ± 0.29 | 2.5 ± 0.09 | 0.945 ± 0.011 | 25 |
| MOR25X2.5 | 25 ± 0.3 | 2.5 ± 0.09 | 0.984 ± 0.012 | 25 |
| MOR26X2.5 | 26 ± 0.31 | 2.5 ± 0.09 | 1.024 ± 0.012 | 25 |
| MOR27X2.5 | 27 ± 0.32 | 2.5 ± 0.09 | 1.063 ± 0.013 | 25 |
| MOR28X2.5 | 28 ± 0.32 | 2.5 ± 0.09 | 1.102 ± 0.013 | 25 |
| MOR29X2.5 | 29 ± 0.33 | 2.5 ± 0.09 | 1.142 ± 0.013 | 25 |
| MOR30X2.5 | 30 ± 0.34 | 2.5 ± 0.09 | 1.181 ± 0.013 | 25 |
| MOR31X2.5 | 31 ± 0.34 | 2.5 ± 0.09 | 1.22 ± 0.013 | 25 |
| MOR32X2.5 | 32 ± 0.35 | 2.5 ± 0.09 | 1.26 ± 0.014 | 25 |
| MOR33X2.5 | 33 ± 0.36 | 2.5 ± 0.09 | 1.299 ± 0.014 | 25 |
| MOR33.5X2.5 | 33.5 ± 0.36 | 2.5 ± 0.09 | 1.319 ± 0.014 | 25 |
| MOR34X2.5 | 34 ± 0.37 | 2.5 ± 0.09 | 1.339 ± 0.015 | 25 |
| MOR35X2.5 | 35 ± 0.37 | 2.5 ± 0.09 | 1.378 ± 0.015 | 25 |
| MOR36X2.5 | 36 ± 0.38 | 2.5 ± 0.09 | 1.417 ± 0.015 | 25 |
| MOR37X2.5 | 37 ± 0.39 | 2.5 ± 0.09 | 1.457 ± 0.015 | 25 |
| MOR38X2.5 | 38 ± 0.4 | 2.5 ± 0.09 | 1.496 ± 0.016 | 25 |
| MOR39X2.5 | 39 ± 0.4 | 2.5 ± 0.09 | 1.535 ± 0.016 | 25 |
| MOR40X2.5 | 40 ± 0.41 | 2.5 ± 0.09 | 1.575 ± 0.016 | 25 |
| MOR41X2.5 | 41 ± 0.42 | 2.5 ± 0.09 | 1.614 ± 0.017 | 25 |
| MOR42X2.5 | 42 ± 0.42 | 2.5 ± 0.09 | 1.654 ± 0.017 | 25 |
| MOR43X2.5 | 43 ± 0.43 | 2.5 ± 0.09 | 1.693 ± 0.017 | 25 |
| MOR44X2.5 | 44 ± 0.44 | 2.5 ± 0.09 | 1.732 ± 0.017 | 25 |
| MOR45X2.5 | 45 ± 0.44 | 2.5 | 1.772 ± 0.017 | 25 |
| MOR46X2.5 | 46 ± 0.45 | 2.5 ± 0.09 | 1.811 ± 0.018 | 25 |
| MOR47X2.5 | 47 | 2.5 ± 0.09 | 1.85 | 10 |
| MOR48X2.5 | 48 ± 0.47 | 2.5 ± 0.09 | 1.89 ± 0.019 | 25 |
| MOR49X2.5 | 49 ± 0.47 | 2.5 ± 0.09 | 1.929 ± 0.019 | 25 |
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, 2.5mm Cross Section, 50 to 150mm ID; NBR 70 O-Ring, Metric, 2mm Cross Section, 1 to 100mm ID; NBR 70 O-Ring, Metric, 3mm Cross Section, 3 to 150mm ID; NBR 70 O-Ring, Metric, 1.6mm Cross Section, 14.1 and 15.1mm 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 |
|---|---|---|
| 3 | MOR3X2.5 | A0203349 |
| 4 | MOR4X2.5 | A0203439 |
| 5 | MOR5X2.5 | A0203440 |
| 5.5 | MOR5.5X2.5 | A0203441 |
| 6 | MOR6X2.5 | A0203442 |
| 6.5 | MOR6.5X2.5 | A0203443 |
| 7 | MOR7X2.5 | A0203444 |
| 8 | MOR8X2.5 | A0203445 |
| 9 | MOR9X2.5 | A0203446 |
| 10 | MOR10X2.5 | A0203448 |
| 10.5 | MOR10.5X2.5 | A0203447 |
| 11 | MOR11X2.5 | A0203450 |
| 11.5 | MOR11.5X2.5 | A0203449 |
| 12 | MOR12X2.5 | A0203451 |
| 13 | MOR13X2.5 | A0203452 |
| 14 | MOR14X2.5 | A0203454 |
| 14.5 | MOR14.5X2.5 | A0203453 |
| 15 | MOR15X2.5 | A0203455 |
| 16 | MOR16X2.5 | A0203456 |
| 17 | MOR17X2.5 | A0203457 |
| 18 | MOR18X2.5 | A0203460 |
| 18.5 | MOR18.5X2.5 | A0203458 |
| 19 | MOR19X2.5 | A0203459 |
| 20 | MOR20X2.5 | A0203461 |
| 21 | MOR21X2.5 | A0203462 |
| 22 | MOR22X2.5 | A0203463 |
| 23 | MOR23X2.5 | A0203464 |
| 24 | MOR24X2.5 | A0203465 |
| 25 | MOR25X2.5 | A0203466 |
| 26 | MOR26X2.5 | A0203467 |
| 27 | MOR27X2.5 | A0203468 |
| 28 | MOR28X2.5 | A0203469 |
| 29 | MOR29X2.5 | A0203470 |
| 30 | MOR30X2.5 | A0203471 |
| 31 | MOR31X2.5 | A0203472 |
| 32 | MOR32X2.5 | A0203473 |
| 33 | MOR33X2.5 | A0203474 |
| 33.5 | MOR33.5X2.5 | A0203475 |
| 34 | MOR34X2.5 | A0203476 |
| 35 | MOR35X2.5 | A0203477 |
| 36 | MOR36X2.5 | A0203478 |
| 37 | MOR37X2.5 | A0203479 |
| 38 | MOR38X2.5 | A0203480 |
| 39 | MOR39X2.5 | A0203481 |
| 40 | MOR40X2.5 | A0203482 |
| 41 | MOR41X2.5 | A0203483 |
| 42 | MOR42X2.5 | A0203484 |
| 43 | MOR43X2.5 | A0203485 |
| 44 | MOR44X2.5 | A0203486 |
| 45 | MOR45X2.5 | A0203487 |
| 46 | MOR46X2.5 | A0203488 |
| 47 | MOR47X2.5 | A0203489 |
| 48 | MOR48X2.5 | A0203490 |
| 49 | MOR49X2.5 | A0203491 |
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NBR 70 O-Ring, Metric, 2.5 mm Cross Section, 3 to 49 mm ID: 3
SKU: A0203349 | Model: MOR3X2.5
NBR 70 O-ring MOR3X2.5, 3mm inside diameter x 2.5mm cross section, pack of 25. Nitrile rubber, 70 durometer.