MOR3X2.5 NBR 70 O-Ring, 3 x 2.5 mm, Pack of 25
Available
NBR (nitrile rubber) 70 durometer metric O-rings with a 2.5 mm cross section. 54 sizes from 3 to 49 mm inside diameter, listed by part number.
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 24 mm inside diameter by 2.5 mm cross section. Measured dimensions and tolerances are listed for 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 49 mm inside diameter
- Cross section 2.5 mm
- Measured dimensions and tolerances listed 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 | 2.5 mm |
| Inside diameter | 3 to 49 mm |
| Sizes | 54 part numbers |
| Pack quantities | 10, 25 by size |
Sizes available
View all 54 models
| 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 |
Selecting and fitting
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 listed under NBR 70 O-Ring, Metric, 2.5 mm Cross Section, 50 to 150 mm ID; NBR 70 O-Ring, Metric, 2 mm Cross Section, 1 to 100 mm ID; NBR 70 O-Ring, Metric, 3 mm Cross Section, 3 to 150 mm ID; NBR 70 O-Ring, Metric, 1.6 mm Cross Section, 14.1 and 15.1 mm ID. For a size that is not stocked, NBR 70 O-Ring Cord, Metric, 1.5 to 16 mm 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. The catalogue does not list a temperature range for these O-rings, so contact AIMS if temperature is critical.
The inside diameter and cross section are the measured dimensions with tolerances as listed in the manufacturer catalogue.
Dimensions are as listed in the manufacturer catalogue and are for reference. Contact AIMS to confirm a measurement if it is critical to your application.
Resources
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3
Model Number: MOR3X2.5
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4
Model Number: MOR4X2.5
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5
Model Number: MOR5X2.5
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5.5
Model Number: MOR5.5X2.5
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6
Model Number: MOR6X2.5
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6.5
Model Number: MOR6.5X2.5
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7
Model Number: MOR7X2.5
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8
Model Number: MOR8X2.5
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9
Model Number: MOR9X2.5
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10
Model Number: MOR10X2.5
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10.5
Model Number: MOR10.5X2.5
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11
Model Number: MOR11X2.5
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11.5
Model Number: MOR11.5X2.5
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12
Model Number: MOR12X2.5
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13
Model Number: MOR13X2.5
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14
Model Number: MOR14X2.5
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14.5
Model Number: MOR14.5X2.5
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15
Model Number: MOR15X2.5
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16
Model Number: MOR16X2.5
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17
Model Number: MOR17X2.5
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18
Model Number: MOR18X2.5
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18.5
Model Number: MOR18.5X2.5
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19
Model Number: MOR19X2.5
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20
Model Number: MOR20X2.5
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21
Model Number: MOR21X2.5
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22
Model Number: MOR22X2.5
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23
Model Number: MOR23X2.5
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24
Model Number: MOR24X2.5
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25
Model Number: MOR25X2.5
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26
Model Number: MOR26X2.5
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27
Model Number: MOR27X2.5
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28
Model Number: MOR28X2.5
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29
Model Number: MOR29X2.5
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30
Model Number: MOR30X2.5
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31
Model Number: MOR31X2.5
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32
Model Number: MOR32X2.5
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33
Model Number: MOR33X2.5
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33.5
Model Number: MOR33.5X2.5
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34
Model Number: MOR34X2.5
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35
Model Number: MOR35X2.5
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36
Model Number: MOR36X2.5
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37
Model Number: MOR37X2.5
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38
Model Number: MOR38X2.5
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39
Model Number: MOR39X2.5
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40
Model Number: MOR40X2.5
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41
Model Number: MOR41X2.5
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42
Model Number: MOR42X2.5
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43
Model Number: MOR43X2.5
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44
Model Number: MOR44X2.5
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45
Model Number: MOR45X2.5
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46
Model Number: MOR46X2.5
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47
Model Number: MOR47X2.5
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48
Model Number: MOR48X2.5
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49
Model Number: MOR49X2.5
