O ring sizes
O ring sizes
Definition - What does O ring sizes mean?
O rings are commonly used components which are used in wide range of industrial equipment. These are available in various sizes and shapes as per the requirements and are manufactured as per the globally recognized industrial standards. The most common and popular standard for describing O ring size is AS568 which is used in United States and is published by S.A.E. (Society of Automotive Engineers). It specifies O ring sizes as “Inch sizes”.
Valaq explains O ring sizes
O ring sizes can be described by various O ring standard size charts used across the globe. Each size chart shows O ring sizes as per there country norms and industrial specifications.
O ring sizes as per some of the common size charts are shown below:
- AS568
| Series | C/S Inches | C/S Frac. | C/S mm | ID Range |
|---|---|---|---|---|
| Zero | .070 | 1/16 | 1.78 | .029 – 5.239″ |
| 100 | .103 | 3/32 | 2.62 | .049 – 9.737″ |
| 200 | .139 | 1/8 | 3.53 | .171 – 17.955″ |
| 300 | .210 | 3/16 | 5.33 | .412 – 25.940″ |
| 400 | .275 | 1/4 | 6.99 | 1.350 – 25.940″ |
| 900 | varies | varies | 1.42 – 3.0 | .185 – 2.337″ |
- BS 1806
| Global Part # | Reference | C/S (MM) | I.D. (MM) | C/S (Inch) | I.D. (Inch) |
|---|---|---|---|---|---|
| 1.02X000.74 | -001 | 1.020 | 0.740 | 0.040 | 0.029 |
| 1.02X001.78 | -606 | 1.020 | 1.780 | 0.040 | 0.070 |
| 1.02X002.54 | -607 | 1.020 | 2.540 | 0.040 | 0.100 |
| 1.27X001.07 | -002 | 1.270 | 1.070 | 0.050 | 0.042 |
| 1.52X001.42 | -003 | 1.520 | 1.420 | 0.060 | 0.056 |
- ISO 3601
| Global Part # | Reference | C/S (MM) | I.D. (MM) | C/S (Inch) | I.D. (Inch) |
|---|---|---|---|---|---|
| 1.80X001.8 | A0018 | 1.8 | 1.8 | 0.071 | 0.071 |
| 1.80X002 | A0020 | 1.8 | 2 | 0.071 | 0.079 |
| 1.80X002.24 | A0022 | 1.8 | 2.24 | 0.071 | 0.088 |
| 1.80X002.5 | A0025 | 1.8 | 2.5 | 0.071 | 0.098 |
| 1.80X002.8 | A0028 | 1.8 | 2.8 | 0.071 | 0.11 |
- BS 4518
| Global Part # | Reference | C/S (MM) | I.D. (MM) | C/S (Inch) | I.D. (Inch) |
|---|---|---|---|---|---|
| 1.60X003.1 | 0031-16 | 1.600 | 3.100 | 0.063 | 0.122 |
| 1.60X004.1 | 0041-16 | 1.600 | 4.100 | 0.063 | 0.161 |
| 1.60X005.1 | 0051-16 | 1.600 | 5.100 | 0.063 | 0.201 |
| 1.60X006.1 | 0061-16 | 1.600 | 6.100 | 0.063 | 0.240 |
| 1.60X007.1 | 0071-16 | 1.600 | 7.100 | 0.063 | 0.280 |
- SMS 1586
| Global Part # | Reference | C/S (MM) | I.D. (MM) | C/S (Inch) | I.D. (Inch) |
|---|---|---|---|---|---|
| 1.60X003.1 | S 3.1 x 1.6 | 1.600 | 3.100 | 0.063 | 0.122 |
| 1.60X004.1 | S 4.1 x 1.6 | 1.600 | 4.100 | 0.063 | 0.161 |
| 1.60X005.1 | S 5.1 x 1.6 | 1.600 | 5.100 | 0.063 | 0.201 |
| 1.60X006.1 | S 6.1 x 1.6 | 1.600 | 6.100 | 0.063 | 0.240 |
| 1.60X007.1 | S 7.1 x 1.6 | 1.600 | 7.100 | 0.063 | 0.280 |
- DIN 3771
| Global Part # | Reference | C/S (MM) | I.D. (MM) | C/S (Inch) | I.D. (Inch) |
|---|---|---|---|---|---|
| 1.80X001.8 | 1.8 X 1.8 | 1.800 | 1.800 | 0.071 | 0.071 |
| 1.80X002 | 2 X 1.8 | 1.800 | 2.000 | 0.071 | 0.079 |
| 1.80X002.24 | 2.24 X 1.8 | 1.800 | 2.240 | 0.071 | 0.088 |
| 1.80X002.5 | 2.5 X 1.8 | 1.800 | 2.500 | 0.071 | 0.098 |
| 1.80X002.8 | 2.8 X 1.8 | 1.800 | 2.800 | 0.071 | 0.110 |
- NFT 47-501
| Global Part # | Reference | C/S (MM) | I.D. (MM) | C/S (Inch) | I.D. (Inch) |
|---|---|---|---|---|---|
| 1.80X001.8 | 01/29/2019 | 1.800 | 1.800 | 0.071 | 0.071 |
| 1.80X002 | 01/29/2019 | 1.800 | 2.000 | 0.071 | 0.079 |
| 1.80X002.24 | 01/29/2019 | 1.800 | 2.240 | 0.071 | 0.088 |
| 1.80X002.5 | 01/29/2019 | 1.800 | 2.500 | 0.071 | 0.098 |
| 1.80X002.8 | 01/29/2019 | 1.800 | 2.800 | 0.071 | 0.110 |
- JIS B 2401 - It has 4 series viz, P series, G series, S series and V series
JIS P series -
| Global Part # | Reference | C/S (MM) | I.D. (MM) |
|---|---|---|---|
| 1.90X002.8 | P3 | 1.900 | 2.800 |
| 1.90X003.8 | P4 | 1.900 | 3.800 |
| 1.90X004.8 | P5 | 1.900 | 4.800 |
| 1.90X005.8 | P6 | 1.900 | 5.800 |
| 1.90X006.8 | P7 | 1.900 | 6.800 |
JIS G series -
| Global Part # | Reference | C/S (MM) | I.D. (MM) |
|---|---|---|---|
| 3.10X024.4 | G25 | 3.100 | 24.400 |
| 3.10X029.4 | G30 | 3.100 | 29.400 |
| 3.10X034.4 | G35 | 3.100 | 34.400 |
| 3.10X039.4 | G40 | 3.100 | 39.400 |
| 3.10X044.4 | G45 | 3.100 | 44.400 |
JIS S series -
| Global Part # | Reference | C/S (MM) | I.D. (MM) |
|---|---|---|---|
| 1.50X002.5 | S-3 | 1.500 | 2.500 |
| 1.50X003.5 | S-4 | 1.500 | 3.500 |
| 1.50X004.5 | S-5 | 1.500 | 4.500 |
| 1.50X005.5 | S-6 | 1.500 | 5.500 |
| 1.50X006.5 | S-7 | 1.500 | 6.500 |
JIS V series -
| Global Part # | Reference | C/S (MM) | I.D. (MM) |
|---|---|---|---|
| 10.00X1044 | V-1055 | 10.000 | 1,044.000 |
| 10.00X475 | V-480 | 10.000 | 475.000 |
| 10.00X524.5 | V-530 | 10.000 | 524.500 |
| 10.00X579 | V-585 | 10.000 | 579.000 |
| 10.00X633.5 | V-640 | 10.000 | 633.500 |
- ISO 6149
| Global Part # | Reference | C/S (MM) | I.D. (MM) | C/S (Inch) | I.D. (Inch) |
|---|---|---|---|---|---|
| 1.60X006.1 | M8 X 1 | 1.600 | 6.100 | 0.063 | 0.240 |
| 1.60X008.1 | M10 X 1 | 1.600 | 8.100 | 0.063 | 0.319 |
| 2.20X009.3 | M12 X 1.5 | 2.200 | 9.300 | 0.087 | 0.366 |
| 2.20X011.3 | M14 X 1.5 | 2.200 | 11.300 | 0.087 | 0.445 |
| 2.20X013.3 | M16 X 1.5 | 2.200 | 13.300 | 0.087 | 0.524 |
| 2.20X015.3 | M18 X 1.5 | 2.200 | 15.300 | 0.087 | 0.602 |
| 2.20X017.3 | M20 X 1.5 | 2.200 | 17.300 | 0.087 | 0.681 |
| 2.20X019.3 | M22 X 1.5 | 2.200 | 19.300 | 0.087 | 0.760 |
| 2.90X023.6 | M27 X 2 | 2.900 | 23.600 | 0.114 | 0.929 |
| 2.90X029.6 | M33 X 2 | 2.900 | 29.600 | 0.114 | 1.165 |
| 2.90X038.6 | M42 X 2 | 2.900 | 38.600 | 0.114 | 1.520 |
| 2.90X044.6 | M48 X 2 | 2.900 | 44.600 | 0.114 | 1.756 |
| 2.90X056.6 | M60 X 2 | 2.900 | 56.600 | 0.114 | 2.228 |
- Generic Metric O ring sizing
| Global Part # | Reference | C/S (MM) | I.D. (MM) |
|---|---|---|---|
| 0.97X002.54 | 0.97x2.54 | 0.970 | 2.540 |
| 1.00X001 | 1x1 | 1.000 | 1.000 |
| 1.00X001.5 | 1x1.5 | 1.000 | 1.500 |
| 1.00X001.78 | 1x1.78 | 1.000 | 1.780 |
| 1.00X002 | 1x2 | 1.000 | 2.000 |
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