O-Ring Tables
O-Ring Table BS 1806
The BS 1806 standard series: all inner diameters and cord thicknesses with reference number. Use the search to quickly find your size.
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Size table
| BS 1806 no. | Inner diameter d₁ (mm) | Cord thickness d₂ (mm) |
|---|---|---|
| -001 | 0.74 | 1.02 |
| -606 | 1.78 | 1.02 |
| -607 | 2.54 | 1.02 |
| -002 | 1.07 | 1.27 |
| -003 | 1.42 | 1.52 |
| -902 | 6.07 | 1.63 |
| -903 | 7.65 | 1.63 |
| -004 | 1.78 | 1.78 |
| -005 | 2.57 | 1.78 |
| -006 | 2.9 | 1.78 |
| -801 | 3.18 | 1.78 |
| -007 | 3.68 | 1.78 |
| -008 | 4.47 | 1.78 |
| -802 | 4.75 | 1.78 |
| -009 | 5.28 | 1.78 |
| -010 | 6.07 | 1.78 |
| -803 | 6.35 | 1.78 |
| -610 | 6.76 | 1.78 |
| -011 | 7.65 | 1.78 |
| -804 | 7.94 | 1.78 |
| -611 | 8.74 | 1.78 |
| -012 | 9.25 | 1.78 |
| -013 | 10.82 | 1.78 |
| -806 | 11.1 | 1.78 |
| -014 | 12.42 | 1.78 |
| -015 | 14 | 1.78 |
| -016 | 15.6 | 1.78 |
| -017 | 17.17 | 1.78 |
| -018 | 18.77 | 1.78 |
| -019 | 20.35 | 1.78 |
| -020 | 21.95 | 1.78 |
| -021 | 23.52 | 1.78 |
| -022 | 25.12 | 1.78 |
| -023 | 26.7 | 1.78 |
| -024 | 28.3 | 1.78 |
| -025 | 29.87 | 1.78 |
| -026 | 31.47 | 1.78 |
| -027 | 33.05 | 1.78 |
| -028 | 34.65 | 1.78 |
| -517 | 36.27 | 1.78 |
| -029 | 37.82 | 1.78 |
| -519 | 39.45 | 1.78 |
| -030 | 41 | 1.78 |
| -031 | 44.17 | 1.78 |
| -032 | 47.35 | 1.78 |
| -033 | 50.52 | 1.78 |
| -034 | 53.7 | 1.78 |
| -035 | 56.87 | 1.78 |
| -036 | 60.05 | 1.78 |
| -037 | 63.22 | 1.78 |
| -038 | 66.4 | 1.78 |
| -039 | 69.57 | 1.78 |
| -040 | 72.75 | 1.78 |
| -041 | 75.92 | 1.78 |
| -532 | 78.99 | 1.78 |
| -042 | 82.27 | 1.78 |
| -534 | 85.34 | 1.78 |
| -043 | 88.62 | 1.78 |
| -536 | 91.69 | 1.78 |
| -044 | 94.97 | 1.78 |
| -538 | 98.04 | 1.78 |
| -045 | 101.32 | 1.78 |
| -540 | 104.39 | 1.78 |
| -046 | 107.67 | 1.78 |
| -542 | 110.74 | 1.78 |
| -047 | 114.02 | 1.78 |
| -544 | 117.09 | 1.78 |
| -048 | 120.37 | 1.78 |
| -546 | 123.44 | 1.78 |
| -049 | 126.72 | 1.78 |
| -548 | 129.41 | 1.78 |
| -050 | 133.07 | 1.78 |
| -550 | 135.76 | 1.78 |
| -551 | 138.94 | 1.78 |
| -552 | 142.11 | 1.78 |
| -553 | 145.29 | 1.78 |
| -554 | 148.46 | 1.78 |
| -555 | 151.64 | 1.78 |
| -556 | 154.82 | 1.78 |
| -557 | 157.99 | 1.78 |
| -558 | 161.16 | 1.78 |
| -559 | 164.34 | 1.78 |
| -560 | 170.05 | 1.78 |
| -561 | 170.69 | 1.78 |
| -562 | 173.86 | 1.78 |
| -102 | 1.24 | 2.62 |
| -103 | 2.06 | 2.62 |
| -104 | 2.84 | 2.62 |
| -105 | 3.63 | 2.62 |
| -106 | 4.45 | 2.62 |
| -107 | 5.23 | 2.62 |
| -108 | 6.02 | 2.62 |
| -109 | 7.59 | 2.62 |
| -110 | 9.19 | 2.62 |
| -613 | 9.93 | 2.62 |
| -111 | 10.77 | 2.62 |
| -614 | 11.91 | 2.62 |
| -112 | 12.37 | 2.62 |
| -807 | 12.7 | 2.62 |
| -615 | 13.11 | 2.62 |
| -113 | 13.94 | 2.62 |
| -616 | 15.09 | 2.62 |
| -114 | 15.54 | 2.62 |
| -809 | 15.88 | 2.62 |
| -115 | 17.12 | 2.62 |
| -810 | 17.45 | 2.62 |
| -617 | 17.86 | 2.62 |
| -116 | 18.72 | 2.62 |
| -117 | 20.29 | 2.62 |
| -812 | 20.62 | 2.62 |
| -118 | 21.89 | 2.62 |
| -813 | 22.23 | 2.62 |
| -119 | 23.47 | 2.62 |
| -120 | 23.8 | 2.62 |
| -121 | 25.07 | 2.62 |
| -122 | 26.64 | 2.62 |
| -123 | 29.82 | 2.62 |
| -124 | 31.42 | 2.62 |
| -125 | 32.99 | 2.62 |
| -126 | 34.59 | 2.62 |
| -127 | 36.17 | 2.62 |
| -128 | 37.77 | 2.62 |
| -129 | 39.34 | 2.62 |
| -130 | 40.94 | 2.62 |
| -131 | 42.52 | 2.62 |
| -132 | 44.12 | 2.62 |
| -133 | 45.69 | 2.62 |
| -134 | 47.29 | 2.62 |
| -135 | 48.9 | 2.62 |
| -136 | 50.47 | 2.62 |
| -137 | 52.07 | 2.62 |
| -138 | 53.64 | 2.62 |
| -139 | 55.25 | 2.62 |
| -140 | 56.82 | 2.62 |
| -141 | 58.42 | 2.62 |
| -142 | 59.99 | 2.62 |
| -143 | 61.6 | 2.62 |
| -144 | 63.17 | 2.62 |
| -145 | 64.77 | 2.62 |
| -146 | 66.34 | 2.62 |
| -147 | 67.95 | 2.62 |
| -148 | 69.52 | 2.62 |
| -149 | 71.12 | 2.62 |
| -150 | 72.69 | 2.62 |
| -640 | 74.27 | 2.62 |
| -151 | 75.87 | 2.62 |
| -641 | 77.44 | 2.62 |
| -642 | 80.62 | 2.62 |
| -152 | 82.22 | 2.62 |
| -643 | 83.79 | 2.62 |
| -153 | 88.57 | 2.62 |
| -154 | 94.92 | 2.62 |
| -155 | 101.27 | 2.62 |
| -156 | 107.62 | 2.62 |
| -157 | 113.97 | 2.62 |
| -158 | 120.32 | 2.62 |
| -159 | 126.67 | 2.62 |
| -160 | 133.02 | 2.62 |
| -161 | 139.37 | 2.62 |
| -162 | 145.72 | 2.62 |
| -163 | 152.07 | 2.62 |
| -164 | 158.42 | 2.62 |
| -165 | 164.77 | 2.62 |
| -166 | 171.12 | 2.62 |
| -167 | 177.47 | 2.62 |
| -168 | 183.82 | 2.62 |
| -169 | 190.17 | 2.62 |
| -170 | 196.52 | 2.62 |
| -171 | 202.87 | 2.62 |
| -172 | 209.22 | 2.62 |
| -173 | 215.57 | 2.62 |
| -174 | 221.92 | 2.62 |
| -175 | 228.27 | 2.62 |
| -176 | 234.62 | 2.62 |
| -177 | 240.97 | 2.62 |
| -178 | 247.32 | 2.62 |
| -201 | 4.34 | 3.53 |
| -202 | 5.94 | 3.53 |
| -203 | 7.52 | 3.53 |
| -204 | 9.12 | 3.53 |
| -205 | 10.69 | 3.53 |
| -206 | 12.29 | 3.53 |
| -207 | 13.94 | 3.53 |
| -208 | 15.47 | 3.53 |
| -209 | 17.07 | 3.53 |
| -210 | 18.64 | 3.53 |
| -211 | 20.22 | 3.53 |
| -212 | 21.82 | 3.53 |
| -213 | 23.39 | 3.53 |
| -214 | 24.99 | 3.53 |
| -618 | 25.81 | 3.53 |
| -215 | 26.57 | 3.53 |
| -216 | 28.17 | 3.53 |
| -217 | 29.74 | 3.53 |
| -218 | 31.34 | 3.53 |
| -219 | 32.92 | 3.53 |
| -220 | 34.52 | 3.53 |
| -221 | 36.09 | 3.53 |
| -222 | 37.69 | 3.53 |
| -824 | 39.7 | 3.53 |
| -223 | 40.87 | 3.53 |
| -825 | 41.28 | 3.53 |
| -826 | 42.85 | 3.53 |
| -224 | 44.04 | 3.53 |
| -827 | 44.45 | 3.53 |
| -828 | 46.04 | 3.53 |
| -225 | 47.22 | 3.53 |
| -829 | 47.63 | 3.53 |
| -830 | 49.2 | 3.53 |
| -226 | 50.39 | 3.53 |
| -831 | 50.8 | 3.53 |
| -832 | 52.39 | 3.53 |
| -227 | 53.57 | 3.53 |
| -833 | 53.98 | 3.53 |
| -834 | 55.55 | 3.53 |
| -228 | 56.74 | 3.53 |
| -835 | 57.15 | 3.53 |
| -836 | 58.74 | 3.53 |
| -229 | 59.92 | 3.53 |
| -837 | 60.33 | 3.53 |
| -838 | 61.9 | 3.53 |
| -230 | 63.09 | 3.53 |
| -839 | 63.5 | 3.53 |
| -840 | 65.1 | 3.53 |
| -231 | 66.27 | 3.53 |
| -841 | 66.68 | 3.53 |
| -842 | 68.25 | 3.53 |
| -232 | 69.44 | 3.53 |
| -843 | 69.85 | 3.53 |
| -844 | 71.44 | 3.53 |
| -233 | 72.62 | 3.53 |
| -845 | 73.03 | 3.53 |
| -846 | 74.6 | 3.53 |
| -234 | 75.79 | 3.53 |
| -235 | 78.97 | 3.53 |
| -236 | 82.14 | 3.53 |
| -237 | 85.32 | 3.53 |
| -238 | 88.49 | 3.53 |
| -239 | 91.67 | 3.53 |
| -240 | 94.84 | 3.53 |
| -241 | 98.02 | 3.53 |
| -242 | 101.19 | 3.53 |
| -243 | 104.37 | 3.53 |
| -244 | 107.54 | 3.53 |
| -245 | 110.72 | 3.53 |
| -246 | 113.89 | 3.53 |
| -247 | 117.07 | 3.53 |
| -248 | 120.24 | 3.53 |
| -249 | 123.42 | 3.53 |
| -250 | 126.59 | 3.53 |
| -251 | 129.77 | 3.53 |
| -252 | 132.94 | 3.53 |
| -253 | 136.12 | 3.53 |
| -254 | 139.29 | 3.53 |
| -255 | 142.47 | 3.53 |
| -256 | 145.64 | 3.53 |
| -257 | 148.82 | 3.53 |
| -258 | 151.99 | 3.53 |
| -259 | 158.34 | 3.53 |
| -260 | 164.69 | 3.53 |
| -261 | 171.04 | 3.53 |
| -262 | 177.39 | 3.53 |
| -263 | 183.74 | 3.53 |
| -264 | 190.09 | 3.53 |
| -265 | 196.44 | 3.53 |
| -266 | 202.79 | 3.53 |
| -267 | 209.14 | 3.53 |
| -268 | 215.49 | 3.53 |
| -269 | 221.84 | 3.53 |
| -270 | 228.19 | 3.53 |
| -271 | 234.54 | 3.53 |
| -272 | 240.89 | 3.53 |
| -273 | 247.24 | 3.53 |
| -274 | 253.59 | 3.53 |
| -275 | 266.29 | 3.53 |
| -276 | 278.99 | 3.53 |
| -277 | 291.69 | 3.53 |
| -278 | 304.39 | 3.53 |
| -279 | 329.79 | 3.53 |
| -280 | 355.19 | 3.53 |
| -281 | 380.59 | 3.53 |
| -309 | 10.46 | 5.33 |
| -310 | 12.07 | 5.33 |
| -311 | 13.64 | 5.33 |
| -312 | 15.24 | 5.33 |
| -313 | 16.81 | 5.33 |
| -314 | 18.42 | 5.33 |
| -315 | 19.99 | 5.33 |
| -316 | 21.59 | 5.33 |
| -317 | 23.16 | 5.33 |
| -318 | 24.77 | 5.33 |
| -319 | 26.34 | 5.33 |
| -320 | 27.94 | 5.33 |
| -321 | 29.51 | 5.33 |
| -322 | 31.12 | 5.33 |
| -323 | 32.69 | 5.33 |
| -324 | 34.29 | 5.33 |
| -325 | 37.47 | 5.33 |
| -326 | 40.64 | 5.33 |
| -327 | 43.82 | 5.33 |
| -328 | 46.99 | 5.33 |
| -329 | 50.17 | 5.33 |
| -330 | 53.34 | 5.33 |
| -331 | 56.52 | 5.33 |
| -332 | 59.69 | 5.33 |
| -333 | 62.87 | 5.33 |
| -334 | 66.04 | 5.33 |
| -335 | 69.22 | 5.33 |
| -336 | 72.39 | 5.33 |
| -619 | 74.61 | 5.33 |
| -337 | 75.57 | 5.33 |
| -338 | 78.74 | 5.33 |
| -620 | 79.78 | 5.33 |
| -339 | 81.92 | 5.33 |
| -340 | 85.09 | 5.33 |
| -341 | 88.27 | 5.33 |
| -621 | 89.69 | 5.33 |
| -342 | 91.44 | 5.33 |
| -343 | 94.62 | 5.33 |
| -344 | 97.79 | 5.33 |
| -622 | 100 | 5.33 |
| -345 | 100.97 | 5.33 |
| -346 | 104.14 | 5.33 |
| -347 | 107.32 | 5.33 |
| -623 | 109.54 | 5.33 |
| -348 | 110.49 | 5.33 |
| -349 | 113.67 | 5.33 |
| -350 | 116.84 | 5.33 |
| -860 | 117.48 | 5.33 |
| -351 | 120.02 | 5.33 |
| -861 | 120.65 | 5.33 |
| -352 | 123.19 | 5.33 |
| -862 | 123.83 | 5.33 |
| -353 | 126.37 | 5.33 |
| -863 | 127 | 5.33 |
| -354 | 129.54 | 5.33 |
| -864 | 130.18 | 5.33 |
| -355 | 132.72 | 5.33 |
| -865 | 133.35 | 5.33 |
| -356 | 135.89 | 5.33 |
| -866 | 136.53 | 5.33 |
| -357 | 139.07 | 5.33 |
| -867 | 139.7 | 5.33 |
| -358 | 142.24 | 5.33 |
| -868 | 142.88 | 5.33 |
| -359 | 145.42 | 5.33 |
| -869 | 146.05 | 5.33 |
| -360 | 148.59 | 5.33 |
| -870 | 149.23 | 5.33 |
| -361 | 151.77 | 5.33 |
| -644 | 154.94 | 5.33 |
| -362 | 158.12 | 5.33 |
| -645 | 161.29 | 5.33 |
| -363 | 164.47 | 5.33 |
| -646 | 167.64 | 5.33 |
| -364 | 170.82 | 5.33 |
| -647 | 173.99 | 5.33 |
| -365 | 177.17 | 5.33 |
| -366 | 183.52 | 5.33 |
| -367 | 189.87 | 5.33 |
| -368 | 196.22 | 5.33 |
| -369 | 202.57 | 5.33 |
| -370 | 208.92 | 5.33 |
| -371 | 215.27 | 5.33 |
| -372 | 221.62 | 5.33 |
| -373 | 227.97 | 5.33 |
| -374 | 234.32 | 5.33 |
| -375 | 240.67 | 5.33 |
| -376 | 247.02 | 5.33 |
| -377 | 253.37 | 5.33 |
| -378 | 266.07 | 5.33 |
| -379 | 278.77 | 5.33 |
| -380 | 291.47 | 5.33 |
| -381 | 304.17 | 5.33 |
| -382 | 329.57 | 5.33 |
| -383 | 354.97 | 5.33 |
| -384 | 380.37 | 5.33 |
| -385 | 405.26 | 5.33 |
| -386 | 430.66 | 5.33 |
| -387 | 456.06 | 5.33 |
| -388 | 481.46 | 5.33 |
| -389 | 506.86 | 5.33 |
| -390 | 532.26 | 5.33 |
| -391 | 557.66 | 5.33 |
| -392 | 582.68 | 5.33 |
| -393 | 608.08 | 5.33 |
| -394 | 633.48 | 5.33 |
| -395 | 658.88 | 5.33 |
| -425 | 113.67 | 6.99 |
| -624 | 114.71 | 6.99 |
| -426 | 116.84 | 6.99 |
| -427 | 120.02 | 6.99 |
| -428 | 123.19 | 6.99 |
| -625 | 124.61 | 6.99 |
| -429 | 126.37 | 6.99 |
| -430 | 129.54 | 6.99 |
| -431 | 132.72 | 6.99 |
| -626 | 134.54 | 6.99 |
| -432 | 135.89 | 6.99 |
| -433 | 139.07 | 6.99 |
| -434 | 142.24 | 6.99 |
| -435 | 145.42 | 6.99 |
| -436 | 148.59 | 6.99 |
| -437 | 151.77 | 6.99 |
| -872 | 155.58 | 6.99 |
| -438 | 158.12 | 6.99 |
| -627 | 159.54 | 6.99 |
| -874 | 161.93 | 6.99 |
| -439 | 164.47 | 6.99 |
| -628 | 166.7 | 6.99 |
| -876 | 168.28 | 6.99 |
| -440 | 170.82 | 6.99 |
| -878 | 174.63 | 6.99 |
| -441 | 177.17 | 6.99 |
| -880 | 180.98 | 6.99 |
| -442 | 183.52 | 6.99 |
| -882 | 187.33 | 6.99 |
| -443 | 189.87 | 6.99 |
| -884 | 193.68 | 6.99 |
| -444 | 196.22 | 6.99 |
| -886 | 200.03 | 6.99 |
| -445 | 202.57 | 6.99 |
| -445A | 208.92 | 6.99 |
| -446 | 215.27 | 6.99 |
| -446A | 221.62 | 6.99 |
| -447 | 227.97 | 6.99 |
| -447A | 234.32 | 6.99 |
| -448 | 240.67 | 6.99 |
| -448A | 247.02 | 6.99 |
| -449 | 253.37 | 6.99 |
| -449A | 259.72 | 6.99 |
| -450 | 266.07 | 6.99 |
| -450A | 272.42 | 6.99 |
| -451 | 278.77 | 6.99 |
| -451A | 285.12 | 6.99 |
| -452 | 291.47 | 6.99 |
| -452A | 297.82 | 6.99 |
| -453 | 304.17 | 6.99 |
| -648 | 310.52 | 6.99 |
| -454 | 316.87 | 6.99 |
| -649 | 323.22 | 6.99 |
| -455 | 329.57 | 6.99 |
| -650 | 335.92 | 6.99 |
| -456 | 342.27 | 6.99 |
| -457 | 354.97 | 6.99 |
| -458 | 367.67 | 6.99 |
| -459 | 380.37 | 6.99 |
| -460 | 393.07 | 6.99 |
| -461 | 405.26 | 6.99 |
| -462 | 417.96 | 6.99 |
| -463 | 430.66 | 6.99 |
| -464 | 443.36 | 6.99 |
| -465 | 456.06 | 6.99 |
| -466 | 468.76 | 6.99 |
| -467 | 481.46 | 6.99 |
| -468 | 494.16 | 6.99 |
| -469 | 506.86 | 6.99 |
| -470 | 532.26 | 6.99 |
| -471 | 557.66 | 6.99 |
| -472 | 582.68 | 6.99 |
| -473 | 608.08 | 6.99 |
| -474 | 633.48 | 6.99 |
| -475 | 658.88 | 6.99 |
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O-ring groove dimensions at a glance
Groove width and depth per cord thickness for flange, piston and rod seals, static and dynamic.
To the O-ring groove dimension table →