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O-rings

Custom O-rings

We can create made-to-order custom o-rings to meet your required specifications, in the following materials.

Buna-N (Nitrile)

Nitrile-butadiene Rubber has good mechanical properties and high wear resistance relative to other elastomers. Unless they are specially compounded, nitrile is not resistant to weathering, sunlight and ozone. It is more puncture resistant than natural rubber, and resistant to cuts, abrasion, tears, caustics, and aliphatic hydrocarbons.

Chloroprene (Neoprene©)

Chloroprene Rubber or Neoprene®, exhibits good resistance to petroleum derivatives, ozone, sunlight/UV, weather, water, oxidation, refrigeration and chemicals. It also has good mechanical properties over a wide temperature range.

Ethylene Propylene

Ethylene Propylene Copolymer (EPM) has excellent resistance to phosphate ester fluids (Skydrol), brake fluids (glycol base), steam, weather, oxidation, and ozone. EPM is able to withstand high temperatures and has excellent electrical insulating properties.

Fluorocarbon (Viton®)

Fluorocarbon Elastomers are resistant to ozone, high temperatures, oxygen, mineral oil, petroleum oils, synthetic hydraulic fluids, fuels, aromatics and many organic solvents and chemicals. The universal O-ring.

Fluorosilicone

Fluorosilicone Rubber has excellent resistance to petroleum oils and fuels, however it has limited strength and abrasion resistance. It is generally recommended for static applications only.

Hydrogenated Nitrile

HNBR has excellent abrasion, compression set, tensile, and tear properties. Unlike standard nitriles, HNBR resists ozone, sunlight, and other atmospheric environments.

Natural Rubber / Isoprene

Natural Rubber / Isoprene has excellent dynamic properties. However, it does not do well with petroleum oils, sunlight and ozone.

Silicone

Silicon Rubber exhibits great temperature range capabilities. Silicones also has good resistance to ozone, weather and is also a good insulator. However, it has low tensile, tear and wear resistance. Silicon o-rings are not resistant to Brake Fluids, Silicone Oils, Acids nor Ketones.

American Seals West stocks thousands of O-Rings in both standard sizes and metric sizes right here in our warehouse. We stock O-rings in a variety of materials, including EPDM, EPR, Silicone, Viton, Teflon, Neoprene & others.

O-Ring Size Reference Chart
SizeC.S.I.D.O.D.C.S.I.D.O.D.Size
InchInchInchMMMMMM
0010.0400.0290.1091.020.742.78001
0020.0500.0420.1421.271.073.61002
0030.0600.0560.1761.521.424.46003
0040.0700.0700.2101.781.785.34004
0050.0700.1010.2411.782.576.13005
0060.0700.1140.2541.782.906.46006
0070.0700.1450.2851.783.687.24007
0080.0700.1760.3161.784.478.03008
0090.0700.2080.3481.785.288.84009
0100.0700.2390.3791.786.079.63010
0110.0700.3010.4411.787.6511.21011
0120.0700.3640.5041.789.2512.81012
0130.0700.4260.5661.7810.8214.38013
0140.0700.4890.6291.7812.4215.98014
0150.0700.5510.6911.7814.0017.56015
0160.0700.6140.7541.7815.6019.16016
0170.0700.6760.8161.7817.1720.73017
0180.0700.7390.8791.7818.7722.33018
0190.0700.8010.9411.7820.3523.91019
0200.0700.8641.0041.7821.9525.51020
0210.0700.9261.0661.7823.5227.08021
0220.0700.9891.1291.7825.1228.68022
0230.0701.0511.1911.7826.7030.26023
0240.0701.1141.2541.7828.3031.86024
0250.0701.1761.3161.7829.8733.43025
0260.0701.2391.3791.7831.4735.03026
0270.0701.3011.4411.7833.0536.61027
0280.0701.3641.5041.7834.6538.21028
0290.0701.4891.6291.7837.8241.38029
0300.0701.6141.7541.7841.0044.56030
0310.0701.7391.8791.7844.1747.73031
0320.0701.8642.0041.7847.3550.91032
0330.0701.9892.1291.7850.5254.08033
0340.0702.1142.2541.7853.7057.26034
0350.0702.2392.3791.7856.8760.43035
0360.0702.3642.5041.7860.0563.61036
0370.0702.4892.6291.7863.2266.78037
0380.0702.6142.7541.7866.4069.96038
0390.0702.7392.8791.7869.5773.13039
0400.0702.8643.0041.7872.7576.31040
0410.0702.9893.1291.7875.9279.48041
0420.0703.2393.3791.7882.2785.83042
0430.0703.4893.6291.7888.6292.18043
0440.0703.7393.8791.7894.9798.53044
0450.0703.9894.1291.78101.32104.88045
0460.0704.2394.3791.78107.67111.23046
0470.0704.4894.6291.78114.02117.58047
0480.0704.7394.8791.78120.37123.93048
0490.0704.9895.1291.78126.72130.28049
0500.0705.2395.3791.78133.07136.63050
1020.1030.0490.2552.621.246.48102
1030.1030.0810.2872.622.067.30103
1040.1030.1120.3182.622.848.08104
1050.1030.1430.3492.623.638.87105
1060.1030.1740.3802.624.429.66106
1070.1030.2060.4122.625.2310.47107
1080.1030.2370.4432.626.0211.26108
1090.1030.2990.5052.627.5912.83109
1100.1030.3620.5682.629.1914.43110
1110.1030.4240.6302.6210.7716.01111
1120.1030.4870.6932.6212.3717.61112
1130.1030.5490.7552.6213.9419.18113
1140.1030.6120.8182.6215.5420.78114
1150.1030.6740.8802.6217.1222.36115
1160.1030.7370.9432.6218.7223.96116
1170.1030.7991.0052.6220.2925.54117
1180.1030.8621.0682.6221.8927.13118
1190.1030.9241.1302.6223.4728.71119
1200.1030.9871.1932.6225.0730.31120
1210.1031.0491.2552.6226.6431.88121
1220.1031.1121.3182.6228.2433.48122
1230.1031.1741.3802.6229.8235.06123
1240.1031.2371.4432.6231.4236.66124
1250.1031.2991.5052.6232.9938.23125
1260.1031.3621.5682.6234.5939.83126
1270.1031.4241.6302.6236.1741.41127
1280.1031.4871.6932.6237.7743.01128
1290.1031.5491.7552.6239.3444.58129
1300.1031.6121.8182.6240.9446.18130
1310.1031.6741.8802.6242.5247.76131
1320.1031.7371.9432.6244.1249.36132
1330.1031.7992.0052.6245.6950.93133
1340.1031.8622.0682.6247.2952.54134
1350.1031.9252.1312.6248.9054.14135
1360.1031.9872.1932.6250.4755.71136
1370.1032.0502.2562.6252.0757.31137
1380.1032.1122.3182.6253.6458.88138
1390.1032.1752.3812.6255.2560.49139
1400.1032.2372.4432.6256.8262.06140
1410.1032.3002.5062.6258.4263.66141
1420.1032.3622.5682.6259.9965.23142
1430.1032.4252.6312.6261.6066.84143
1440.1032.4872.6932.6263.1768.41144
1450.1032.5502.7562.6264.7770.01145
1460.1032.6122.8182.6266.3471.58146
1470.1032.6752.8812.6267.9573.19147
1480.1032.7372.9432.6269.5274.76148
1490.1032.8003.0062.6271.1276.36149
1500.1032.8623.0682.6272.6977.93150
1510.1032.9873.1932.6275.8781.11151
1530.1033.4873.6932.6288.5793.81153
1520.1033.2373.4432.6282.2287.46152
1540.1033.7373.9432.6294.92100.16154
1550.1033.9874.1932.62101.27106.51155
1560.1034.2374.4432.62107.62112.86156
1570.1034.4874.6932.62113.97119.21157
1580.1034.7374.9432.62120.32125.56158
1590.1034.9875.1932.62126.67131.91159
1600.1035.2375.4432.62133.02138.26160
1610.1035.4875.6932.62139.37144.61161
1620.1035.7375.9432.62145.72150.96162
1630.1035.9876.1932.62152.07157.31163
1640.1036.2376.4432.62158.42163.66164
1650.1036.4876.6932.62164.77170.01165
1660.1036.7376.9432.62171.12176.36166
1670.1036.9877.1932.62177.47182.71167
1680.1037.2377.4432.62183.82189.06168
1690.1037.4877.6932.62190.17195.41169
1700.1037.7377.9432.62196.52201.76170
1710.1037.9878.1932.62202.87208.11171
1720.1038.2378.4432.62209.22214.46172
1730.1038.4878.6932.62215.57220.81173
1740.1038.7378.9432.62221.92227.16174
1750.1038.9879.1932.62228.27233.51175
1760.1039.2379.4432.62234.62239.86176
1770.1039.4879.6932.62240.97246.21177
1780.1039.7379.9432.62247.32252.56178
2010.1390.1710.4493.534.3411.40201
2020.1390.2340.5123.535.9413.00202
2030.1390.2960.5743.537.5214.58203
2040.1390.3590.6373.539.1216.18204
2050.1390.4210.6993.5310.6917.75205
2060.1390.4840.7623.5312.2919.35206
2070.1390.5460.8243.5313.8720.93207
2080.1390.6090.8873.5315.4722.53208
2090.1390.6710.9493.5317.0424.10209
2100.1390.7341.0123.5318.6425.70210
2110.1390.7961.0743.5320.2227.28211
2120.1390.8591.1373.5321.8228.88212
2130.1390.9211.1993.5323.3930.45213
2140.1390.9841.2623.5324.9932.06214
2150.1391.0461.3243.5326.5733.63215
2160.1391.1091.3873.5328.1735.23216
2170.1391.1711.4493.5329.7436.80217
2180.1391.2341.5123.5331.3438.40218
2190.1391.2961.5743.5332.9239.98219
2200.1391.3591.6373.5334.5241.58220
2210.1391.4211.6993.5336.0943.15221
2220.1391.4841.7623.5337.6944.75222
2230.1391.6091.8873.5340.8747.93223
2240.1391.7342.0123.5344.0451.10224
2250.1391.8592.1373.5347.2254.28225
2260.1391.9842.2623.5350.3957.45226
2270.1392.1092.3873.5353.5760.63227
2280.1392.2342.5123.5356.7463.80228
2290.1392.3592.6373.5359.9266.98229
2300.1392.4842.7623.5363.0970.15230
2310.1392.6092.8873.5366.2773.33231
2320.1392.7343.0123.5369.4476.50232
2330.1392.8593.1373.5372.6279.68233
2340.1392.9843.2623.5375.7982.85234
2350.1393.1093.3873.5378.9786.03235
2360.1393.2343.5123.5382.1489.20236
2370.1393.3593.6373.5385.3292.38237
2380.1393.4843.7623.5388.4995.55238
2390.1393.6093.8873.5391.6798.73239
2400.1393.7344.0123.5394.84101.90240
2410.1393.8594.1373.5398.02105.08241
2420.1393.9844.2623.53101.19108.25242
2430.1394.1094.3873.53104.37111.43243
2440.1394.2344.5123.53107.54114.60244
2450.1394.3594.6373.53110.72117.78245
2460.1394.4844.7623.53113.89120.95246
2470.1394.6094.8873.53117.07124.13247
2480.1394.7345.0123.53120.24127.30248
2490.1394.8595.1373.53123.42130.48249
2500.1394.9845.2623.53126.59133.65250
2510.1395.1095.3873.53129.77136.83251
2520.1395.2345.5123.53132.94140.00252
2530.1395.3595.6373.53136.12143.18253
2540.1395.4845.7623.53139.29146.35254
2550.1395.6095.8873.53142.47149.53255
2560.1395.7346.0123.53145.64152.71256
2570.1395.8596.1373.53148.82155.88257
2580.1395.9846.2623.53151.99159.05258
2590.1396.2346.5123.53158.34165.40259
2600.1396.4846.7623.53164.69171.75260
2610.1396.7347.0123.53171.04178.10261
2620.1396.9847.2623.53177.39184.45262
2630.1397.2347.5123.53183.74190.80263
2640.1397.4847.7623.53190.09197.15264
2650.1397.7348.0123.53196.44203.50265
2660.1397.9848.2623.53202.79209.85266
2670.1398.2348.5123.53209.14216.20267
2680.1398.4848.7623.53215.49222.55268
2690.1398.7349.0123.53221.84228.90269
2700.1398.9849.2623.53228.19235.25270
2710.1399.2349.5123.53234.54241.60271
2720.1399.4849.7623.53240.89247.95272
2730.1399.73410.0123.53247.24254.30273
2740.1399.98410.2623.53253.59260.65274
2750.13910.48410.7623.53266.29273.35275
2760.13910.98411.2623.53278.99286.05276
2770.13911.48411.7623.53291.69298.75277
2780.13911.98412.2623.53304.39311.45278
2790.13912.98413.2623.53329.79336.85279
2800.13913.98414.2623.53355.19362.25280
2810.13914.98415.2623.53380.59387.65281
2820.13915.95516.2333.53405.26412.32282
2830.13916.95517.2333.53430.66437.72283
2840.13917.95518.2333.53456.06463.12284
3090.2100.4120.8325.3310.4621.12309
3100.2100.4750.8955.3312.0722.73310
3110.2100.5370.9575.3313.6424.30311
3120.2100.6001.0205.3315.2425.90312
3130.2100.6621.0825.3316.8127.47313
3140.2100.7251.1455.3318.4229.08314
3150.2100.7871.2075.3319.9930.65315
3160.2100.8501.2705.3321.5932.25316
3170.2100.9121.3325.3323.1633.82317
3180.2100.9751.3955.3324.7735.43318
3190.2101.0371.4575.3326.3437.00319
3200.2101.1001.5205.3327.9438.60320
3210.2101.1621.5825.3329.5140.17321
3220.2101.2251.6455.3331.1241.78322
3230.2101.2871.7075.3332.6943.35323
3240.2101.3501.7705.3334.2944.95324
3250.2101.4751.8955.3337.4748.13325
3260.2101.6002.0205.3340.6451.30326
3270.2101.7252.1455.3343.8254.48327
3280.2101.8502.2705.3346.9957.65328
3290.2101.9752.3955.3350.1760.83329
3300.2102.1002.5205.3353.3464.00330
3310.2102.2252.6455.3356.5267.18331
3320.2102.3502.7705.3359.6970.35332
3330.2102.4752.8955.3362.8773.53333
3340.2102.6003.0205.3366.0476.70334
3350.2102.7253.1455.3369.2279.88335
3360.2102.8503.2705.3372.3983.05336
3370.2102.9753.3955.3375.5786.23337
3380.2103.1003.5205.3378.7489.40338
3390.2103.2253.6455.3381.92102.58339
3400.2103.3503.7705.3385.0995.75340
3410.2103.4753.8955.3388.2798.93341
3420.2103.6004.0205.3391.44102.10342
3430.2103.7254.1455.3394.62105.28343
3440.2103.8504.2705.3397.79108.45344
3450.2103.9754.3955.33100.97111.63345
3460.2104.1004.5205.33104.14114.80346
3470.2104.2254.6455.33107.32117.98347
3480.2104.3504.7705.33110.49121.15348
3490.2104.4754.8955.33113.67124.33349
3500.2104.6005.0205.33116.84127.50350
3510.2104.7255.1455.33120.02130.68351
3520.2104.8505.2705.33123.19133.85352
3530.2104.9755.3955.33126.37137.03353
3540.2105.1005.5205.33129.54140.20354
3550.2105.2255.6455.33132.72143.38355
3560.2105.3505.7705.33135.89146.55356
3570.2105.4755.8955.33139.07149.73357
3580.2105.6006.0205.33142.24152.90358
3590.2105.7256.1455.33145.42156.08359
3600.2105.8506.2705.33148.59159.25360
3610.2105.9756.3955.33151.77162.43361
3620.2106.2256.6455.33158.12168.78362
3630.2106.4756.8955.33164.47175.13363
3640.2106.7257.1455.33170.82181.48364
3650.2106.9757.3955.33177.17187.83365
3660.2107.2257.6455.33183.52194.18366
3670.2107.4757.8955.33189.87200.53367
3680.2107.7258.1455.33196.22206.88368
3690.2107.9758.3955.33202.57213.23369
3700.2108.2258.6455.33208.92219.58370
3710.2108.4758.8955.33215.27225.93371
3720.2108.7259.1455.33221.62232.28372
3730.2108.9759.3955.33227.97238.63373
3740.2109.2259.6455.33234.32244.98374
3750.2109.4759.8955.33240.67251.33375
3760.2109.72510.1455.33247.02257.68376
3770.2109.97510.3955.33253.37264.03377
3780.21010.47510.8955.33266.07276.73378
3790.21010.97511.3955.33278.77289.43379
3800.21011.47511.8955.33291.47302.13380
3810.21011.97512.3955.33304.17314.83381
3820.21012.97513.3955.33329.57340.23382
3830.21013.97514.3955.33354.97365.63383
3840.21014.97515.3955.33380.37391.03384
3850.21015.95516.3755.33405.26415.92385
3860.21016.95517.3755.33430.66441.32386
3870.21017.95518.3755.33456.06466.72387
3880.21018.95519.3755.33481.46492.07388
3890.21019.95520.3755.33506.86517.47389
3900.21020.95521.3755.33532.26542.87390
3910.21021.95522.3755.33557.66568.27391
3920.21022.94023.3605.33582.68593.34392
3930.21023.94024.3605.33608.08618.74393
3940.21024.94025.3605.33633.48644.14394
3950.21025.94026.3605.33658.88669.54395
4000.2751.3501.9006.9934.2948.26400
4010.2751.4752.0256.9937.4751.44401
4020.2751.6002.1506.9940.6454.61402
4030.2751.7252.2756.9943.8257.79403
4040.2751.8502.4006.9946.9960.96404
4050.2751.9752.5256.9950.1764.14405
4060.2752.1002.6506.9953.3467.31406
4070.2752.2252.7756.9956.5270.49407
4080.2752.3502.9006.9959.6973.66408
4090.2752.4753.0256.9962.8776.84409
4100.2752.6003.1506.9966.0480.01410
4110.2752.7253.2756.9969.2283.19411
4120.2752.8503.4006.9972.3986.36412
4130.2752.9753.5256.9975.5789.54413
4140.2753.1003.6506.9978.7492.71414
4150.2753.2253.7756.9981.9295.89415
4160.2753.3503.9006.9985.0999.06416
4170.2753.4754.0256.9988.27102.24417
4180.2753.6004.1506.9991.44105.41418
4190.2753.7254.2756.9994.62108.59419
4200.2753.8504.4006.9997.79111.76420
4210.2753.9754.5256.99100.97114.94421
4220.2754.1004.6506.99104.14118.11422
4230.2754.2254.7756.99107.32121.29423
4240.2754.3504.9006.99110.49124.46424
4250.2754.4755.0256.99113.67127.65425
4260.2754.6005.1506.99116.84130.82426
4270.2754.7255.2756.99120.02134.00427
4280.2754.8505.4006.99123.19137.17428
4290.2754.9755.5256.99126.37140.35429
4300.2755.1005.6506.99129.54143.52430
4310.2755.2255.7756.99132.72146.70431
4320.2755.3505.9006.99135.89149.87432
4330.2755.4756.0256.99139.07153.05433
4340.2755.6006.1506.99142.24156.22434
4350.2755.7256.2756.99145.42159.40435
4360.2755.8506.4006.99148.59162.57436
4370.2755.9756.5256.99151.77165.75437
4380.2756.2256.7756.99158.12172.10438
4390.2756.4757.0256.99164.47178.45439
4400.2756.7257.2756.99170.82184.80440
4410.2756.9757.5256.99177.17191.15441
4420.2757.2257.7756.99183.52197.50442
4430.2757.4758.0256.99189.87203.85443
4440.2757.7258.2756.99196.22210.20444
4450.2757.9758.5256.99202.57216.55445
4460.2758.4759.0256.99215.27229.25446
4470.2758.9759.5256.99227.97241.95447
4480.2759.47510.0256.99240.67254.65448
4490.2759.97510.5256.99253.37267.35449
4500.27510.47511.0256.99266.07280.05450
4510.27510.97511.5256.99278.77292.75451
4520.27511.47512.0256.99291.47305.45452
4530.27511.97512.5256.99304.17318.15453
4540.27512.47513.0256.99316.87330.85454
4550.27512.97513.5256.99329.57343.55455
4560.27513.45714.0076.99342.27356.25456
4570.27513.97514.5256.99354.97368.95457
4580.27514.47515.0256.99367.67381.65458
4590.27514.97515.5256.99380.37394.35459
4600.27515.47516.0256.99393.07407.05460
4610.27515.95516.5056.99405.26419.24461
4620.27516.45517.0056.99417.96431.94462
4630.27516.95517.5056.99430.66444.64463
4640.27517.45518.0056.99443.36457.34464
4650.27517.95518.5056.99456.06470.04465
4660.27518.45519.0056.99468.76482.74466
4670.27518.95519.5056.99481.46495.44467
4680.27519.45520.0056.99494.16508.14468
4690.27519.95520.5056.99506.86520.84469
4700.27520.95521.5056.99532.26546.24470
4710.27521.95522.5056.99557.66571.64471
4720.27522.94023.4906.99582.68596.66472
4730.27523.94024.4906.99608.08622.06473
4740.27524.94025.4906.99633.48647.46474
4750.27525.94026.4906.99658.88672.86475
9010.0560.1850.2971.424.707.54901
9020.0640.2390.3671.636.079.33902
9030.0640.3010.4291.637.6510.91903
9040.0720.3510.4951.838.9212.58904
9050.0720.4140.5581.8310.5214.18905
9060.0780.4680.6241.9811.8915.85906
9070.0820.5300.6942.0813.4617.62907
9080.0870.6440.8182.2116.3620.78908
9090.0970.7060.9002.4617.9322.85909
9100.0970.7550.9492.4619.1824.10910
9110.1160.8631.0952.9521.9227.82911
9120.1160.9241.1562.9523.4729.37912
9130.1160.9861.2182.9525.0430.94913
9140.1161.0471.2792.9526.5932.49914
9160.1161.1711.4032.9529.7435.64916
9180.1161.3551.5872.9534.4240.32918
9200.1161.4751.7073.0037.4743.47920
9240.1161.7201.9523.0043.6949.69924
9280.1162.0902.3223.0053.0959.09928
9320.1162.3372.5693.0059.3665.36932

Service areas

American Seals West services all of the United States of America & Canada.

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