DIN 3771 Metric O-Rings

/DIN 3771 Metric O-Rings
DIN 3771 Metric O-Rings 2019-06-21T10:48:04+00:00

DIN 3771 Metric O-Rings Size Chart

The DIN 3771 o-ring standard is issued by The German Institute for Standards (Duetsches Institut für Normung). This standard identifies O-Ring sizes by the ID x C/S, and may be followed by a letter indicating the quality level (N – normal quality; S – special quality), and a code indicating the rubber polymer and IRHD hardness.

For a complete listing of all metric o-ring sizes, visit our Metric O-Ring Cross Reference Table.

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DIN 3771 Size Chart

Global Part # Reference C/S (MM) I.D. (MM) C/S (Inch) I.D. (Inch)
1.80X001.8 1.8 X 1.8 1.80 1.80 0.071 0.071
1.80X002 2 X 1.8 1.80 2.00 0.071 0.079
1.80X002.24 2.24 X 1.8 1.80 2.24 0.071 0.088
1.80X002.5 2.5 X 1.8 1.80 2.50 0.071 0.098
1.80X002.8 2.8 X 1.8 1.80 2.80 0.071 0.110
1.80X003.15 3.15 X 1.8 1.80 3.15 0.071 0.124
1.80X003.55 3.55 X 1.8 1.80 3.55 0.071 0.140
1.80X003.75 3.75 X 1.8 1.80 3.75 0.071 0.148
1.80X004 4 X 1.8 1.80 4.00 0.071 0.157
1.80X004.5 4.5 X 1.8 1.80 4.50 0.071 0.177
1.80X004.87 4.87 X 1.8 1.80 4.87 0.071 0.192
1.80X005 5 X 1.8 1.80 5.00 0.071 0.197
1.80X005.15 5.15 X 1.8 1.80 5.15 0.071 0.203
1.80X005.3 5.3 X 1.8 1.80 5.30 0.071 0.209
1.80X005.6 5.6 X 1.8 1.80 5.60 0.071 0.220
1.80X006 6 X 1.8 1.80 6.00 0.071 0.236
1.80X006.3 6.3 X 1.8 1.80 6.30 0.071 0.248
1.80X006.7 6.7 X 1.8 1.80 6.70 0.071 0.264
1.80X006.9 6.9 X 1.8 1.80 6.90 0.071 0.272
1.80X007.1 7.1 X 1.8 1.80 7.10 0.071 0.280
1.80X007.5 7.5 X 1.8 1.80 7.50 0.071 0.295
1.80X008 8 X 1.8 1.80 8.00 0.071 0.315
1.80X008.5 8.5 X 1.8 1.80 8.50 0.071 0.335
1.80X008.75 8.75 X 1.8 1.80 8.75 0.071 0.344
1.80X009 9 X 1.8 1.80 9.00 0.071 0.354
1.80X009.5 9.5 X 1.8 1.80 9.50 0.071 0.374
1.80X010 10 X 1.8 1.80 10.00 0.071 0.394
1.80X010.6 10.6 X 1.8 1.80 10.60 0.071 0.417
1.80X011.2 11.2 X 1.8 1.80 11.20 0.071 0.441
1.80X011.8 11.8 X 1.8 1.80 11.80 0.071 0.465
1.80X012.5 12.5 X 1.8 1.80 12.50 0.071 0.492
1.80X013.2 13.2 X 1.8 1.80 13.20 0.071 0.520
1.80X014 14 X 1.8 1.80 14.00 0.071 0.551
1.80X015 15 X 1.8 1.80 15.00 0.071 0.591
1.80X016 16 X 1.8 1.80 16.00 0.071 0.630
1.80X017 17 X 1.8 1.80 17.00 0.071 0.669
2.65X014 14 X 2.65 2.65 14.00 0.104 0.551
2.65X015 15 X 2.65 2.65 15.00 0.104 0.591
2.65X016 16 X 2.65 2.65 16.00 0.104 0.630
2.65X017 17 X 2.65 2.65 17.00 0.104 0.669
2.65X018 18 X 2.65 2.65 18.00 0.104 0.709
2.65X019 19 X 2.65 2.65 19.00 0.104 0.748
2.65X020 20 X 2.65 2.65 20.00 0.104 0.787
2.65X021.2 21.2 X 2.65 2.65 21.20 0.104 0.835
2.65X022.4 22.4 X 2.65 2.65 22.40 0.104 0.882
2.65X023.6 23.6 X 2.65 2.65 23.60 0.104 0.929
2.65X025 25 X 2.65 2.65 25.00 0.104 0.984
2.65X025.8 25.8 X 2.65 2.65 25.80 0.104 1.016
2.65X026.5 26.5 X 2.65 2.65 26.50 0.104 1.043
2.65X028 28 X 2.65 2.65 28.00 0.104 1.102
2.65X030 30 X 2.65 2.65 30.00 0.104 1.181
2.65X031.5 31.5 X 2.65 2.65 31.50 0.104 1.240
2.65X032.5 32.5 X 2.65 2.65 32.50 0.104 1.280
2.65X033.5 33.5 X 2.65 2.65 33.50 0.104 1.319
2.65X034.5 34.5 X 2.65 2.65 34.50 0.104 1.358
2.65X035.5 35.5 X 2.65 2.65 35.50 0.104 1.398
2.65X036.5 36.5 X 2.65 2.65 36.50 0.104 1.437
2.65X037.5 37.5 X 2.65 2.65 37.50 0.104 1.476
2.65X038.7 38.7 X 2.65 2.65 38.70 0.104 1.524
3.55X018 18 X 3.55 3.55 18.00 0.140 0.709
3.55X019 19 X 3.55 3.55 19.00 0.140 0.748
3.55X020 20 X 3.55 3.55 20.00 0.140 0.787
3.55X021.2 21.2 X 3.55 3.55 21.20 0.140 0.835
3.55X022.4 22.4 X 3.55 3.55 22.40 0.140 0.882
3.55X023.6 23.6 X 3.55 3.55 23.60 0.140 0.929
3.55X025 25 X 3.55 3.55 25.00 0.140 0.984
3.55X025.8 25.8 X 3.55 3.55 25.80 0.140 1.016
3.55X026.5 26.5 X 3.55 3.55 26.50 0.140 1.043
3.55X028 28 X 3.55 3.55 28.00 0.140 1.102
3.55X030 30 X 3.55 3.55 30.00 0.140 1.181
3.55X031.5 31.5 X 3.55 3.55 31.50 0.140 1.240
3.55X032.5 32.5 X 3.55 3.55 32.50 0.140 1.280
3.55X033.5 33.5 X 3.55 3.55 33.50 0.140 1.319
3.55X034.5 34.5 X 3.55 3.55 34.50 0.140 1.358
3.55X035.5 35.5 X 3.55 3.55 35.50 0.140 1.398
3.55X036.5 36.5 X 3.55 3.55 36.50 0.140 1.437
3.55X037.5 37.5 X 3.55 3.55 37.50 0.140 1.476
3.55X038.7 38.7 X 3.55 3.55 38.70 0.140 1.524
3.55X040 40 X 3.55 3.55 40.00 0.140 1.575
3.55X041.2 41.2 X 3.55 3.55 41.20 0.140 1.622
3.55X042.5 42.5 X 3.55 3.55 42.50 0.140 1.673
3.55X043.7 43.7 X 3.55 3.55 43.70 0.140 1.720
3.55X045 45 X 3.55 3.55 45.00 0.140 1.772
3.55X046.2 46.2 X 3.55 3.55 46.20 0.140 1.819
3.55X047.5 47.5 X 3.55 3.55 47.50 0.140 1.870
3.55X048.7 48.7 X 3.55 3.55 48.70 0.140 1.917
3.55X050 50 X 3.55 3.55 50.00 0.140 1.969
3.55X051.5 51.5 X 3.55 3.55 51.50 0.140 2.028
3.55X053 53 X 3.55 3.55 53.00 0.140 2.087
3.55X054.5 54.5 X 3.55 3.55 54.50 0.140 2.146
3.55X056 56 X 3.55 3.55 56.00 0.140 2.205
3.55X058 58 X 3.55 3.55 58.00 0.140 2.283
3.55X060 60 X 3.55 3.55 60.00 0.140 2.362
3.55X061.5 61.5 X 3.55 3.55 61.50 0.140 2.421
3.55X063 63 X 3.55 3.55 63.00 0.140 2.480
3.55X065 65 X 3.55 3.55 65.00 0.140 2.559
3.55X067 67 X 3.55 3.55 67.00 0.140 2.638
3.55X069 69 X 3.55 3.55 69.00 0.140 2.717
3.55X071 71 X 3.55 3.55 71.00 0.140 2.795
3.55X073 73 X 3.55 3.55 73.00 0.140 2.874
3.55X075 75 X 3.55 3.55 75.00 0.140 2.953
3.55X077.5 77.5 X 3.55 3.55 77.50 0.140 3.051
3.55X080 80 X 3.55 3.55 80.00 0.140 3.150
3.55X082.5 82.5 X 3.55 3.55 82.50 0.140 3.248
3.55X085 85 X 3.55 3.55 85.00 0.140 3.346
3.55X087.5 87.5 X 3.55 3.55 87.50 0.140 3.445
3.55X090 90 X 3.55 3.55 90.00 0.140 3.543
3.55X092.5 92.5 X 3.55 3.55 92.50 0.140 3.642
3.55X095 95 X 3.55 3.55 95.00 0.140 3.740
3.55X097.5 97.5 X 3.55 3.55 97.50 0.140 3.839
3.55X100 100 X 3.55 3.55 100.00 0.140 3.937
3.55X103 103 X 3.55 3.55 103.00 0.140 4.055
3.55X106 106 X 3.55 3.55 106.00 0.140 4.173
3.55X109 109 X 3.55 3.55 109.00 0.140 4.291
3.55X112 112 X 3.55 3.55 112.00 0.140 4.409
3.55X115 115 X 3.55 3.55 115.00 0.140 4.528
3.55X118 118 X 3.55 3.55 118.00 0.140 4.646
3.55X122 122 X 3.55 3.55 122.00 0.140 4.803
3.55X125 125 X 3.55 3.55 125.00 0.140 4.921
3.55X128 128 X 3.55 3.55 128.00 0.140 5.039
3.55X132 132 X 3.55 3.55 132.00 0.140 5.197
3.55X136 136 X 3.55 3.55 136.00 0.140 5.354
3.55X140 140 X 3.55 3.55 140.00 0.140 5.512
3.55X145 145 X 3.55 3.55 145.00 0.140 5.709
3.55X150 150 X 3.55 3.55 150.00 0.140 5.906
3.55X155 155 X 3.55 3.55 155.00 0.140 6.102
3.55X160 160 X 3.55 3.55 160.00 0.140 6.299
3.55X165 165 X 3.55 3.55 165.00 0.140 6.496
3.55X170 170 X 3.55 3.55 170.00 0.140 6.693
3.55X175 175 X 3.55 3.55 175.00 0.140 6.890
3.55X180 180 X 3.55 3.55 180.00 0.140 7.087
3.55X185 185 X 3.55 3.55 185.00 0.140 7.283
3.55X190 190 X 3.55 3.55 190.00 0.140 7.480
3.55X195 195 X 3.55 3.55 195.00 0.140 7.677
3.55X200 200 X 3.55 3.55 200.00 0.140 7.874
5.30X040 40 X 5.3 5.30 40.00 0.209 1.575
5.30X041.2 41.2 X 5.3 5.30 41.20 0.209 1.622
5.30X042.5 42.5 X 5.3 5.30 42.50 0.209 1.673
5.30X043.7 43.7 X 5.3 5.30 43.70 0.209 1.720
5.30X045 45 X 5.3 5.30 45.00 0.209 1.772
5.30X046.2 46.2 X 5.3 5.30 46.20 0.209 1.819
5.30X047.5 47.5 X 5.3 5.30 47.50 0.209 1.870
5.30X048.7 48.7 X 5.3 5.30 48.70 0.209 1.917
5.30X050 50 X 5.3 5.30 50.00 0.209 1.969
5.30X051.5 51.5 X 5.3 5.30 51.50 0.209 2.028
5.30X053 53 X 5.3 5.30 53.00 0.209 2.087
5.30X054.5 54.5 X 5.3 5.30 54.50 0.209 2.146
5.30X056 56 X 5.3 5.30 56.00 0.209 2.205
5.30X058 58 X 5.3 5.30 58.00 0.209 2.283
5.30X060 60 X 5.3 5.30 60.00 0.209 2.362
5.30X061.5 61.5 X 5.3 5.30 61.50 0.209 2.421
5.30X063 63 X 5.3 5.30 63.00 0.209 2.480
5.30X065 65 X 5.3 5.30 65.00 0.209 2.559
5.30X067 67 X 5.3 5.30 67.00 0.209 2.638
5.30X069 69 X 5.3 5.30 69.00 0.209 2.717
5.30X071 71 X 5.3 5.30 71.00 0.209 2.795
5.30X073 73 X 5.3 5.30 73.00 0.209 2.874
5.30X075 75 X 5.3 5.30 75.00 0.209 2.953
5.30X077.5 77.5 X 5.3 5.30 77.50 0.209 3.051
5.30X080 80 X 5.3 5.30 80.00 0.209 3.150
5.30X082.5 82.5 X 5.3 5.30 82.50 0.209 3.248
5.30X085 85 X 5.3 5.30 85.00 0.209 3.346
5.30X087.5 87.5 X 5.3 5.30 87.50 0.209 3.445
5.30X090 90 X 5.3 5.30 90.00 0.209 3.543
5.30X092.5 92.5 X 5.3 5.30 92.50 0.209 3.642
5.30X095 95 X 5.3 5.30 95.00 0.209 3.740
5.30X097.5 97.5 X 5.3 5.30 97.50 0.209 3.839
5.30X100 100 X 5.3 5.30 100.00 0.209 3.937
5.30X103 103 X 5.3 5.30 103.00 0.209 4.055
5.30X106 106 X 5.3 5.30 106.00 0.209 4.173
5.30X109 109 X 5.3 5.30 109.00 0.209 4.291
5.30X112 112 X 5.3 5.30 112.00 0.209 4.409
5.30X115 115 X 5.3 5.30 115.00 0.209 4.528
5.30X118 118 X 5.3 5.30 118.00 0.209 4.646
5.30X122 122 X 5.3 5.30 122.00 0.209 4.803
5.30X125 125 X 5.3 5.30 125.00 0.209 4.921
5.30X128 128 X 5.3 5.30 128.00 0.209 5.039
5.30X132 132 X 5.3 5.30 132.00 0.209 5.197
5.30X136 136 X 5.3 5.30 136.00 0.209 5.354
5.30X140 140 X 5.3 5.30 140.00 0.209 5.512
5.30X145 145 X 5.3 5.30 145.00 0.209 5.709
5.30X150 150 X 5.3 5.30 150.00 0.209 5.906
5.30X155 155 X 5.3 5.30 155.00 0.209 6.102
5.30X160 160 X 5.3 5.30 160.00 0.209 6.299
5.30X165 165 X 5.3 5.30 165.00 0.209 6.496
5.30X170 170 X 5.3 5.30 170.00 0.209 6.693
5.30X175 175 X 5.3 5.30 175.00 0.209 6.890
5.30X180 180 X 5.3 5.30 180.00 0.209 7.087
5.30X185 185 X 5.3 5.30 185.00 0.209 7.283
5.30X190 190 X 5.3 5.30 190.00 0.209 7.480
5.30X195 195 X 5.3 5.30 195.00 0.209 7.677
5.30X200 200 X 5.3 5.30 200.00 0.209 7.874
5.30X206 206 X 5.3 5.30 206.00 0.209 8.110
5.30X212 212 X 5.3 5.30 212.00 0.209 8.346
5.30X218 218 X 5.3 5.30 218.00 0.209 8.583
5.30X224 224 X 5.3 5.30 224.00 0.209 8.819
5.30X230 230 X 5.3 5.30 230.00 0.209 9.055
5.30X236 236 X 5.3 5.30 236.00 0.209 9.291
5.30X243 243 X 5.3 5.30 243.00 0.209 9.567
5.30X250 250 X 5.3 5.30 250.00 0.209 9.843
5.30X258 258 X 5.3 5.30 258.00 0.209 10.157
5.30X265 265 X 5.3 5.30 265.00 0.209 10.433
5.30X272 272 X 5.3 5.30 272.00 0.209 10.709
5.30X280 280 X 5.3 5.30 280.00 0.209 11.024
5.30X290 290 X 5.3 5.30 290.00 0.209 11.417
5.30X300 300 X 5.3 5.30 300.00 0.209 11.811
5.30X307 307 X 5.3 5.30 307.00 0.209 12.087
5.30X315 315 X 5.3 5.30 315.00 0.209 12.402
5.30X325 325 X 5.3 5.30 325.00 0.209 12.795
5.30X335 335 X 5.3 5.30 335.00 0.209 13.189
5.30X345 345 X 5.3 5.30 345.00 0.209 13.583
5.30X355 355 X 5.3 5.30 355.00 0.209 13.976
5.30X365 365 X 5.3 5.30 365.00 0.209 14.370
5.30X375 375 X 5.3 5.30 375.00 0.209 14.764
5.30X387 387 X 5.3 5.30 387.00 0.209 15.236
5.30X400 400 X 5.3 5.30 400.00 0.209 15.748
7.00X206 206 X 7 7.00 206.00 0.276 8.110
7.00X212 212 X 7 7.00 212.00 0.276 8.346
7.00X218 218 X 7 7.00 218.00 0.276 8.583
7.00X224 224 X 7 7.00 224.00 0.276 8.819
7.00X230 230 X 7 7.00 230.00 0.276 9.055
7.00X236 236 X 7 7.00 236.00 0.276 9.291
7.00X243 243 X 7 7.00 243.00 0.276 9.567
7.00X250 250 X 7 7.00 250.00 0.276 9.843
7.00X258 258 X 7 7.00 258.00 0.276 10.157
7.00X265 265 X 7 7.00 265.00 0.276 10.433
7.00X272 272 X 7 7.00 272.00 0.276 10.709
7.00X280 280 X 7 7.00 280.00 0.276 11.024
7.00X290 290 X 7 7.00 290.00 0.276 11.417
7.00X300 300 X 7 7.00 300.00 0.276 11.811
7.00X307 307 X 7 7.00 307.00 0.276 12.087
7.00X315 315 X 7 7.00 315.00 0.276 12.402
7.00X325 325 X 7 7.00 325.00 0.276 12.795
7.00X335 335 X 7 7.00 335.00 0.276 13.189
7.00X345 345 X 7 7.00 345.00 0.276 13.583
7.00X355 355 X 7 7.00 355.00 0.276 13.976
7.00X365 365 X 7 7.00 365.00 0.276 14.370
7.00X375 375 X 7 7.00 375.00 0.276 14.764
7.00X387 387 X 7 7.00 387.00 0.276 15.236
7.00X400 400 X 7 7.00 400.00 0.276 15.748
7.00X412 412 X 7 7.00 412.00 0.276 16.220
7.00X425 425 X 7 7.00 425.00 0.276 16.732
7.00X437 437 X 7 7.00 437.00 0.276 17.205
7.00X450 450 X 7 7.00 450.00 0.276 17.717
7.00X462 462 X 7 7.00 462.00 0.276 18.189
7.00X475 475 X 7 7.00 475.00 0.276 18.701
7.00X487 487 X 7 7.00 487.00 0.276 19.173
7.00X500 500 X 7 7.00 500.00 0.276 19.685
7.00X515 515 X 7 7.00 515.00 0.276 20.276
7.00X530 530 X 7 7.00 530.00 0.276 20.866
7.00X545 545 X 7 7.00 545.00 0.276 21.457
7.00X560 560 X 7 7.00 560.00 0.276 22.047
7.00X580 580 X 7 7.00 580.00 0.276 22.835
7.00X600 600 X 7 7.00 600.00 0.276 23.622
7.00X615 615 X 7 7.00 615.00 0.276 24.213
7.00X630 630 X 7 7.00 630.00 0.276 24.803
7.00X650 650 X 7 7.00 650.00 0.276 25.591
7.00X670 670 X 7 7.00 670.00 0.276 26.378