AS568 O-Rings

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  Dimensions in Inches   Nominal Size (reference only)
AS568C I.D. ± C/S Vol. in
Cu. Inches
I.D. O.D. C/S

CROSS SECTION .070" ± .003"

001 .029 .004 .040 .0003 1/32 3/32 1/32
002 .042 .004 .050 .0006 3/64 9/64 3/64
003 .056 .004 .060 .0010 1/16 3/16 1/16
004 .070 .005 .070 .0017 5/64 13/64 1/16
005 .101 .005 .070 .0021 3/32 7/32 1/16
006 .114 .005 .070 .0022 1/8 1/4 1/16
007 .145 .005 .070 .0026 5/32 9/32 1/16
008 .176 .005 .070 .0030 3/16 5/16 1/16
009 .208 .005 .070 .0034 7/32 11/32 1/16
010 .239 .005 .070 .0037 1/4 3/8 1/16
011 .301 .005 .070 .0045 5/16 7/16 1/16
012 .364 .005 .070 .0052 3/8 1/2 1/16
013 .426 .005 .070 .0060 7/16 9/16 1/16
014 .489 .005 .070 .0068 1/2 5/8 1/16
015 .551 .007 .070 .0075 9/16 11/16 1/16
016 .614 .009 .070 .0083 5/8 3/4 1/16
017 .676 .009 .070

.0090

11/16 13/16 1/16
018 .739 .009 .070 .0098 3/4 7/8 1/16
019 .801 .009 .070 .0105 13/16 15/16 1/16
020 .864 .009 .070 .0113 7/8 1 1/16
021 .926 .009 .070 .0120 15/16 1-1/16 1/16
022 .989 .010 .070 .0128 1 1-1/8 1/16
023 1.051 .010 .070 .0136 1-1/16 1-3/16 1/16
024 1.114 .010 .070 .0143 1-1/8 1-1/4 1/16
025 1.176 .011 .070 .0151 1-3/16 1-5/16 1/16
026 1.239 .011 .070 .0158 1-1/4 1-3/8 1/16
027 1.301 .011 .070 .0166 1-5/16 1-7/16 1/16
028 1.364 .013 .070 .0173 1-3/8 1-1/2 1/16
029 1.489 .013 .070 .0188 1-1/2 1-5/8 1/16
030 1.614 .013 .070 .0204 1-5/8 1-3/4 1/16
031 1.739 .015 .070 .0219 1-3/4 1-7/8 1/16
032 1.864 .015 .070 .0234 1-7/8 2 1/16
033 1.989 .018 .070 .0249 2 2-1/8 1/16
034 2.114 .018 .070 .0264 2-1/8 2-1/4 1/16
035 2.239 .018 .070 .0279 2-1/4 2-3/8 1/16
036 2.364 .018 .070 .0294 2-3/8 2-1/2 1/16
037 2.489 .018 .070 .0309 2-1/2 2-5/8 1/16
038 2.614 .020 .070 .0324 2-5/8 2-3/4 1/16
039 2.739 .020 .070 .0340 2-3/4 2-7/8 1/16
040 2.864 .020 .070 .0355 2-7/8 3 1/16
041 2.989 .024 .070 .0370 3 3-1/8 1/16
042 3.239 .024 .070 .0400 3-1/4 3-3/8 1/16
043 3.489 .024 .070 .0430 3-1/2 3-5/8 1/16
044 3.739 .027 .070 .0460 3-3/4 3-7/8 1/16
045 3.989 .027 .070 .0491 4 4-1/8 1/16
046 4.239 .030 .070 .0521 4-1/4 4-3/8 1/16
047 4.489 .030 .070 .0551 4-1/2 4-5/8 1/16
048 4.739 .030 .070 .0581 4-3/4 4-7/8 1/16
049 4.989 .037 .070 .0612 5 5-1/8 1/16
050 5.239 .037 .070 .0643 5-1/4 5-3/8 1/16

CROSS SECTION .103" ± .003"

102 .049 .005 .103 .0040 1/16 1/4 3/32
103 .081 .005 .103 .0048 3/32 9/32 3/32
104 .112 .005 .103 .0056 1/8 5/16 3/32
105 .143 .005 .103 .0064 5/32 11/32 3/32
106 .174 .005 .103 .0072 3/16 3/8 3/32
107 .206 .005 .103 .0080 7/32 13/32 3/32
108 .237 .005 .103 .0088 1/4 7/16 3/32
109 .299 .005 .103 .0105 5/16 1/2 3/32
110 .362 .005 .103 .0122 3/8 9/16 3/32
111 .424 .005 .103 .0138 7/16 5/8 3/32
112 .487 .005 .103 .0154 1/2 11/16 3/32
113 .549 .007 .103 .0171 9/16 3/4 3/32
114 .612 .009 .103 .0187 5/8 13/16 3/32
115 .674 .009 .103 .0203 11/16 7/8 3/32
116 .737 .009 .103 .0220 3/4 15/16 3/32
117 .799 .010 .103 .0236 13/16 1 3/32
118 .862 .010 .103 .0253 7/8 1-1/16 3/32
119 .924 .010 .103 .0269 15/16 1-1/8 3/32
120 .987 .010 .103 .0285 1 1-3/16 3/32
121 1.049 .010 .103 .0302 1-1/16 1-1/4 3/32
122 1.112 .010 .103 .0318 1-1/8 1-5/16 3/32
123 1.174 .012 .103 .0334 1-3/16 1-3/8 3/32
124 1.237 .012 .103 .0351 1-1/4 1-7/16 3/32
125 1.299 .012 .103 .0367 1-5/16 1-1/2 3/32
126 1.362 .012 .103 .0383 1-3/8 1-9/16 3/32
127 1.424 .012 .103 .0400 1-7/16 1-5/8 3/32
128 1.487 .012 .103 .0416 1-1/2 1-11/16 3/32
129 1.549 .015 .103 .0432 1-9/16 1-3/4 3/32
130 1.612 .015 .103 .0449 1-5/8 1-13/16 3/32
131 1.674 .015 .103 .0465 1-11/16 1-7/8 3/32
132 1.737 .015 .103 .0482 1-3/4 1-15/16 3/32
133 1.799 .015 .103 .0498 1-13/16 2 3/32
134 1.862 .015 .103 .0514 1-7/8 2-1/16 3/32
135 1.925 .017 .103 .0531 1-15/16 2-1/8 3/32
136 1.987 .017 .103 .0547 2 2-3/16 3/32
137 2.050 .017 .103 .0564 2-1/16 2-1/4 3/32
138 2.112 .017 .103 .0580 2-1/8 2-5/16 3/32
139 2.175 .017 .103 .0596 2-3/16 2-3/8 3/32
140 2.237 .017 .103 .0612 2-1/4 2-7/16 3/32
141 2.300 .020 .103 .0629 2-5/16 2-1/2 3/32
142 2.362 .020 .103 .0645 2-3/8 2-9/16 3/32
143 2.425 .020 .103 .0662 2-7/16 2-5/8 3/32
144 2.487 .020 .103 .0678 2-1/2 2-11/16 3/32
145 2.55 .020 .103 .0694 2-9/16 2-3/4 3/32
146 2.612 .020 .103 .0711 2-5/8 2-13/16 3/32
147 2.675 .022 .103 .0727 2-11/16 2-7/8 3/32
148 2.737 .022 .103 .0743 2-3/4 2-15/16 3/32
149 2.800 .022 .103 .0760 2-13/16 3 3/32
150 2.862 .022 .103 .0776 2-7/8 3-1/16 3/32
151 2.987 .024 .103 .0809 3 3-3/16 3/32
152 3.237 .024 .103 .0874 3-1/4 3-7/16 3/32
153 3.487 .024 .103 .0940 3-1/2 3-11/16 3/32
154 3.737 .028 .103 .1005 3-3/4 3-15/16 3/32
155 3.987 .028 .103 .1071 4 4-3/16 3/32
156 4.237 .030 .103 .1136 4-1/4 4-7/16 3/32
157 4.487 .030 .103 .1202 4-1/2 4-11/16 3/32
158 4.737 .030 .103 .1267 4-3/4 4-15/16 3/32
159 4.987 .035 .103 .1332 5 5-3/16 3/32
160 5.237 .035 .103 .1398 5-1/4 5-7/16 3/32
161 5.487 .035 .103 .1463 5-1/2 5-11/16 3/32
162 5.737 .035 .103 .1529 5-3/4 5-15/16 3/32
163 5.987 .035 .103 .1594 6 6-3/16 3/32
164 6.237 .040 .103 .1660 6-1/4 6-7/16 3/32
165 6.487 .040 .103 .1726 6-1/2 6-11/16 3/32
166 6.737 .040 .103 .1791 6-3/4 6-15/16 3/32
167 6.987 .040 .103 .1856 7 7-3/16 3/32
168 7.237 .045 .103 .1921 7-1/4 7-7/16 3/32
169 7.487 .045 .103 .1986 7-1/2 7-11/16 3/32
170 7.737 .045 .103 .2052 7-3/4 7-15/16 3/32
171 7.987 .045 .103 .2117 8 8-3/16 3/32
172 8.237 .050 .103 .2182 8-1/4 8-7/16 3/32
173 8.487 .050 .103 .2247 8-1/2 8-11/16 3/32
174 8.737 .050 .103 .2313 8-3/4 8-15/16 3/32
175 8.897 .050 .103 .2378 9 9-3/16 3/32
176 9.237 .055 .103 .2443 9-1/4 9-7/16 3/32
177 9.487 .055 .103 .2508 9-1/2 9-11/16 3/32
178 9.737 .055 .103 .2574 9-3/4 9-15/16 3/32

CROSS SECTION .139" ± .004"

201 .171 .005 .139 .0148 3/16 7/16 1/8
202 .234 .005 .139 .0178 1/4 1/2 1/8
203 .296 .005 .139 .0207 5/16 9/16 1/8
204 .359 .005 .139 .0237 3/8 5/8 1/8
205 .421 .005 .139 .0267 7/16 11/16 1/8
206 .484 .005 .139 .0297 1/2 3/4 1/8
207 .546 .007 .139 .0327 9/16 13/16 1/8
208 .609 .009 .139 .0357 5/8 7/8 1/8
209 .671 .009 .139 .0386 11/16 15/16 1/8
210 .734 .010 .139 .0416 3/4 1 1/8
211 .796 .010 .139 .0446 13/16 1-1/16 1/8
212 .859 .010 .139 .0476 7/8 1-1/8 1/8
213 .921 .010 .139 .0505 15/16 1-3/16 1/8
214 .984 .010 .139 .0535 1 1-1/4 1/8
215 1.046 .010 .139 .0565 1-1/16 1-5/16 1/8
216 1.109 .012 .139 .0595 1-1/8 1-3/8 1/8
217 1.171 .012 .139 .0624 1-3/16 1-7/16 1/8
218 1.234 .012 .139 .0656 1-1/4 1-1/2 1/8
219 1.296 .012 .139 .0684 1-5/16 1-9/16 1/8
220 1.359 .012 .139 .0714 1-3/8 1-5/8 1/8
221 1.421 .012 .139 .0744 1-7/16 1-11/16 1/8
222 1.484 .015 .139 .0774 1-1/2 1-3/4 1/8
223 1.609 .015 .139 .0833 1-5/8 1-7/8 1/8
224 1.734 .015 .139 .0893 1-3/4 2 1/8
225 1.859 .018 .139 .0952 1-7/8 2-1/8 1/8
226 1.984 .018 .139 .1012 2 2-1/4 1/8
227 2.109 .018 .139 .1072 2-1/8 2-3/8 1/8
228 2.234 .020 .139 .1131 2-1/4 2-1/2 1/8
229 2.359 .020 .139 .1191 2-3/8 2-5/8 1/8
230 2.484 .020 .139 .1250 2-1/2 2-3/4 1/8
231 2.609 .020 .139 .1310 2-5/8 2-7/8 1/8
232 2.734 .024 .139 .1370 2-3/4 3 1/8
233 2.859 .024 .139 .1429 2-7/8 3-1/8 1/8
234 2.984 .024 .139 .1489 3 3-1/4 1/8
235 3.109 .024 .139 .1548 3-1/8 3-3/8 1/8
236 3.234 .024 .139 .1608 3-1/4 3-1/2 1/8
237 3.359 .024 .139 .1668 3-3/8 3-5/8 1/8
238 3.484 .024 .139 .1727 3-1/2 3-3/4 1/8
239 3.609 .028 .139 .1787 3-5/8 3-7/8 1/8
240 3.734 .028 .139 .1846 3-3/4 4 1/8
241 3.859 .028 .139 .1906 3-7/8 4-1/8 1/8
242 3.984 .028 .139 .1966 4 4-1/4 1/8
243 4.109 .028 .139 .2025 4-1/8 4-3/8 1/8
244 4.234 .030 .139 .2085 4-1/4 4-1/2 1/8
245 4.359 .030 .139 .2144 4-3/8 4-5/8 1/8
246 4.484 .030 .139 .2204 4-1/2 4-3/4 1/8
247 4.609 .030 .139 .2264 4-5/8 4-7/8 1/8
248 4.734 .030 .139 .2323 4-3/4 5 1/8
249 4.859 .035 .139 .2383 4-7/8 5-1/8 1/8
250 4.984 .035 .139 .2442 5 5-1/4 1/8
251 5.109 .035 .139 .2502 5-1/8 5-3/8 1/8
252 5.234 .035 .139 .2561 5-1/4 5-1/2 1/8
253 5.359 .035 .139 .2621 5-3/8 5-5/8 1/8
254 5.484 .035 .139 .2681 5-1/2 5-3/4 1/8
255 5.609 .035 .139 .2740 5-5/8 5-7/8 1/8
256 5.734 .035 .139 .2800 5-3/4 6 1/8
257 5.859 .035 .139 .2859 5-7/8 6-1/8 1/8
258 5.984 .035 .139 .2919 6 6-1/4 1/8
259 6.234 .040 .139 .3038 6-1/4 6-1/2 1/8
260 6.484 .040 .139 .3157 6-1/2 6-3/4 1/8
261 6.734 .040 .139 .3276 6-3/4 7 1/8
262 6.984 .040 .139 .3396 7 7-1/4 1/8
263 7.234 .045 .139 .3515 7-1/4 7-1/2 1/8
264 7.484 .045 .139 .3634 7-1/2 7-3/4 1/8
265 7.734 .045 .139 .3753 7-3/4 8 1/8
266 7.984 .045 .139 .3872 8 8-1/4 1/8
267 8.234 .050 .139 .3992 8-1/4 8-1/2 1/8
268 8.484 .050 .139 .4111 8-1/2 8-3/4 1/8
269 8.734 .050 .139 .4230 8-3/4 9 1/8
270 8.984 .050 .139 .4349 9 9-1/4 1/8
271 9.234 .055 .139 .4468 9-1/4 9-1/2 1/8
272 9.484 .055 .139 .4588 9-1/2 9-3/4 1/8
273 9.734 .055 .139 .4707 9-3/4 10 1/8
274 9.984 .055 .139 .4826 10 10-1/4 1/8
275 10.484 .055 .139 .5064 10-1/2 10-3/4 1/8
276 10.984 .065 .139 .5303 11 11-1/4 1/8
277 11.484 .065 .139 .5541 11-1/2 11-3/4 1/8
278 11.984 .065 .139 .5779 12 12-1/4 1/8
279 12.984 .065 .139 .6256 13 13-1/4 1/8
280 13.984 .065 .139 .6733 14 14-1/4 1/8
281 14.984 .065 .139 .7210 15 15-1/4 1/8
282 15.955 .075 .139 .7672 16 16-1/4 1/8
283 16.955 .080 .139 .8149 17 17-1/4 1/8
284 17.955 .085 .139 .8627 18 18-1/4 1/8

CROSS SECTION .210" ± .005"

309 .412 .005 .210 .0677 7/16 13/16 3/16
310 .475 .005 .210 .0745 1/2 7/8 3/16
311 .537 .007 .210 .0813 9/16 15/16 3/16
312 .600 .009 .210 .0881 5/8 1 3/16
313 .662 .009 .210 .0949 11/16 1-1/16 3/16
314 .725 .010 .210 .1017 3/4 1-1/8 3/16
315 .787 .010 .210 .1085 13/16 1-3/16 3/16
316 .850 .010 .210 .1153 7/8 1-1/4 3/16
317 .912 .010 .210 .1221 15/16 1-5/16 3/16
318 .975 .010 .210 .1289 1 1-3/8 3/16
319 1.037 .010 .210 .1357 1-1/16 1-/7/16 3/16
320 1.100 .012 .210 .1425 1-1/8 1-1/2 3/16
321 1.162 .012 .210 .1493 1-3/16 1-9/16 3/16
322 1.225 .012 .210 .1561 1-1/4 1-5/8 3/16
323 1.287 .012 .210 .1629 1-5/16 1-11/16 3/16
324 1.350 .012 .210 .1697 1-3/8 1-3/4 3/16
325 1.475 .015 .210 .1833 1-1/2 1-7/8 3/16
326 1.600 .015 .210 .1970 1-5/8 2 3/16
327 1.725 .015 .210 .2106 1-3/4 2-1/8 3/16
328 1.850 .015 .210 .2242 1-7/8 2-1/4 3/16
329 1.975 .018 .210 .2378 2 2-3/8 3/16
330 2.100 .018 .210 .2514 2-1/8 2-1/2 3/16
331 2.225 .018 .210 .2650 2-1/4 2-5/8 3/16
332 2.350 .018 .210 .2789 2-3/8 2-3/4 3/16
333 2.475 .020 .210 .2922 2-1/2 2-7/8 3/16
334 2.600 .020 .210 .3058 2-5/8 3 3/16
335 2.725 .020 .210 .3194 2-3/4 3-1/8 3/16
336 2.850 .020 .210 .3330 2-7/8 3-1/4 3/16
337 2.975 .024 .210 .3466 3 3-3/8 3/16
338 3.100 .024 .210 .3602 3-1/8 3-1/2 3/16
339 3.225 .024 .210 .3738 3-1/4 3-5/8 3/16
340 3.350 .024 .210 .3874 3-3/8 3-3/4 3/16
341 3.475 .024 .210 .4010 3-1/2 3-7/8 3/16
342 3.600 .028 .210 .4146 3-5/8 4 3/16
343 3.725 .028 .210 .4282 3-3/4 4-1/8 3/16
344 3.850 .028 .210 .4418 3-7/8 4-1/4 3/16
345 3.975 .028 .210 .4554 4 4-3/8 3/16
346 4.100 .028 .210 .4690 4-1/8 4-1/2 3/16
347 4.225 .030 .210 .4826 4-1/4 4-5/8 3/16
348 4.350 .030 .210 .4962 4-3/8 4-3/4 3/16
349 4.475 .030 .210 .5098 4-1/2 4-7/8 3/16
350 4.600 .030 .210 .5234 4-5/8 5 3/16
351 4.725 .030 .210 .5370 4-3/4 5-1/8 3/16
352 4.850 .030 .210 .5506 4-7/8 5-1/4 3/16
353 4.975 .037 .210 .5642 5 5-3/8 3/16
354 5.100 .037 .210 .5778 5-1/8 5-1/2 3/16
355 5.225 .037 .210 .5914 5-1/4 5-5/8 3/16
356 5.350 .037 .210 .6050 5-3/8 5-3/4 3/16
357 5.475 .037 .210 .6186 5-1/2 5-7/8 3/16
358 5.600 .037 .210 .6322 5-5/8 6 3/16
359 5.725 .037 .210 .6458 5-3/4 6-1/8 3/16
360 5.850 .037 .210 .6594 5-7/8 6-1/4 3/16
361 5.975 .037 .210 .6730 6 6-3/8 3/16
362 6.225 .040 .210 .7002 6-1/4 6-5/8 3/16
363 6.475 .040 .210 .7274 6-1/2 6-7/8 3/16
364 6.725 .040 .210 .7546 6-3/4 7-1/8 3/16
365 6.975 .040 .210 .7818 7 7-3/8 3/16
366 7.225 .045 .210 .8090 7-1/4 7-5/8 3/16
367 7.475 .045 .210 .8362 7-1/2 7-7/8 3/16
368 7.725 .045 .210 .8634 7-3/4 8-1/8 3/16
369 7.975 .045 .210 .8906 8 8-3/8 3/16
370 8.225 .050 .210 .9178 8-1/4 8-5/8 3/16
371 8.475 .050 .210 .9450 8-1/2 8-7/8 3/16
372 8.725 .050 .210 .9722 8-3/4 9-1/8 3/16
373 8.975 .050 .210 .9994 9 9-3/8 3/16
374 9.225 .055 .210 1.0266 9-1/4 9-5/8 3/16
375 9.475 .055 .210 1.0538 9-1/2 9-7/8 3/16
376 9.725 .055 .210 1.0810 9-3/4 10-1/8 3/16
377 9.975 .055 .210 1.1083 10 10-3/8 3/16
378 10.475 .060 .210 1.1627 10-1/2 10-7/8 3/16
379 10.975 .060 .210 1.2171 11 11-3/8 3/16
380 11.475 .065 .210 1.2737 11-1/2 11-7/8 3/16
381 11.975 .065 .210 1.2715 12 12-3/8 3/16
382 12.975 .065 .210 1.3259 13 13-3/8 3/16
383 13.975 .070 .210 1.4347 14 14-3/8 3/16
384 14.975 .070 .210 1.5435 15 15-3/8 3/16
385 15.955 .075 .210 1.6523 16 16-3/8 3/16
386 16.955 .080 .210 1.7590 17 17-3/8 3/16
387 17.955 .085 .210 1.9766 18 18-3/8 3/16
388 18.955 .090 .210 2.0854 19 19-3/8 3/16
389 19.955 .095 .210 2.1942 20 20-3/8 3/16
390 20.955 .095 .210 2.3030 21 21-3/8 3/16
391 21.955 .100 .210 2.4118 22 22-3/8 3/16
392 22.940 .105 .210 2.5190 23 23-3/8 3/16
393 23.940 .110 .210 2.6278 24 24-3/8 3/16
394 24.940 .115 .210 2.7366 25 25-3/8 3/16
395 25.940 .120 .210 2.8454 26 26-3/8 3/16

CROSS SECTION .275" ± .006"

425 4.475 .033 .275 .8863 4-1/2 5 1/4
426 4.600 .033 .275 .9097 4-5/8 5-1/8 1/4
427 4.725 .033 .275 .9330 4-3/4 5-1/4 1/4
428 4.850 .033 .275 .9563 4-7/8 5-3/8 1/4
429 4.975 .037 .275 .9796 5 5-1/2 1/4
430 5.100 .037 .275 1.0030 5-1/8 5-5/8 1/4
431 5.225 .037 .275 1.0263 5-1/4 5-3/4 1/4
432 5.350 .037 .275 1.0496 5-3/8 5-7/8 1/4
433 5.475 .037 .275 1.0729 5-1/2 6 1/4
434 5.600 .037 .275 1.0962 5-5/8 6-1/8 1/4
435 5.725 .037 .275 1.1196 5-3/4 6-1/4 1/4
436 5.850 .037 .275 1.1429 5-7/8 6-3/8 1/4
437 5.975 .037 .275 1.1662 6 6-1/2 1/4
438 6.225 .040 .275 1.2129 6-1/4 6-3/4 1/4
439 6.475 .040 .275 1.2595 6-1/2 7 1/4
440 6.725 .040 .275 1.3062 6-3/4 7-1/4 1/4
441 6.975 .040 .275 1.3528 7 7-1/2 1/4
442 7.225 .045 .275 1.3995 7-1/4 7-3/4 1/4
443 7.475 .045 .275 1.4461 7-1/2 8 1/4
444 7.725 .045 .275 1.4928 7-3/4 8-1/4 1/4
445 7.975 .045 .275 1.5394 8 8-1/2 1/4
446 8.475 .035 .275 1.6327 8-1/2 9 1/4
447 8.975 .055 .275 1.7260 9 9-1/2 1/4
448 9.475 .055 .275 1.8193 9-1/2 10 1/4
449 9.975 .055 .275 1.9126 10 10-1/2 1/4
450 10.475 .060 .275 2.0059 10-1/2 11 1/4
451 10.975 .060 .275 2.0092 11 11-1/2 1/4
452 11.475 .060 .275 2.1925 11-1/2 12 1/4
453 11.975 .060 .275 2.2858 12 12-1/2 1/4
454 12.475 .060 .275 2.3791 12-1/2 13 1/4
455 12.975 .060 .275 2.4724 13 13-1/2 1/4
456 13.475 .070 .275 2.5657 13-1/2 14 1/4
457 13.975 .070 .275 2.6590 14 14-1/2 1/4
458 14.475 .070 .275 2.7523 14-1/2 15 1/4
459 14.975 .070 .275 2.8456 15 15-1/2 1/4
460 15.475 .070 .275 2.9389 15-1/2 16 1/4
461 15.955 .075 .275 3.0285 16 16-1/2 1/4
462 16.455 .075 .275 3.1218 16-1/2 17 1/4
463 16.955 .080 .275 3.2151 17 17-1/2 1/4
464 17.455 .085 .275 3.3084 17-1/2 18 1/4
465 17.955 .085 .275 3.4017 18 18-1/2 1/4
466 18.455 .085 .275 3.4950 18-1/2 19 1/4
467 18.955 .090 .275 3.5883 19 19-1/2 1/4
468 19.455 .090 .275 3.6816 19-1/2 20 1/4
469 19.955 .095 .275 3.7749 20 20-1/2 1/4
470 20.955 .095 .275 3.9615 21 21-1/2 1/4
471 21.955 .100 .275 4.1481 22 22-1/2 1/4
472 22.940 .105 .275 4.3319 23 23-1/2 1/4
473 23.940 .110 .275 4.5185 24 24-1/2 1/4
474 24.940 .115 .275 4.7051 25 25-1/2 1/4
475 25.940 .120 .275 4.8917 26 26-1/2 1/4

STATIC AND DYNAMIC
SIZING CHARTS

36 Compartment O-Ring Kits

This is the standard anti-extrusion device for O-Rings and other seals.

STANDARD BACK-UP RING
MS28774 SIZES

12 Compartment O-Ring Kits

This is the standard anti-extrusion device for O-Rings and other seals.

RUBBER CONTOURED
BACKUP RING SIZE CHART

Additional Kits

Rubber Contoured Backup Ring Size Chart