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3/16 NOMINAL (.210) ACTUAL CROSS SECTION
1/16 (.070 o-ring) AS568A Sizes
3/32(.103 o-ring) AS568A Sizes
1/8(.139 o-ring) AS568A Sizes
1/4 (.275 o-ring) AS568A Sizes
900 series boss o-ring Sizes
AS568A O-RING UNIVERSAL SERIES SIZE CHART - FLEX INC. TEL
800-525-8463 & FAX 440-946-4620
AS568A-
ID
TOL.+/-
C/S
TOL.+/-
Nom. I.D.
Nom. O.D.
309
0.412
0.045
0.21
0.005
7/16
13/16
310
0.475
0.045
0.21
0.005
1/2
7/8
311
0.537
0.045
0.21
0.005
9/16
15/16
312
0.6
0.045
0.21
0.005
5/8
1
313
0.662
0.045
0.21
0.005
11/16
1-1/16
314
0.725
0.045
0.21
0.005
3/4
1-1/8
315
0.787
0.045
0.21
0.005
13/16
1-3/16
316
0.85
0.045
0.21
0.005
7/8
1-1/4
317
0.912
0.045
0.21
0.005
15/16
1-5/16
318
0.975
0.045
0.21
0.005
1
1-3/8
319
1.037
0.045
0.21
0.005
1-1/16
1-7/16
320
1.1
0.045
0.21
0.005
1-1/8
1-1/2
321
1.162
0.045
0.21
0.005
1-3/16
1-9/16
322
1.225
0.045
0.21
0.005
1-1/4
1-5/8
323
1.287
0.045
0.21
0.005
1-5/16
1-11/16
324
1.35
0.045
0.21
0.005
1-3/8
1-3/4
325
1.475
0.01
0.21
0.005
1-1/2
1-7/8
326
1.6
0.01
0.21
0.005
1-5/8
2
327
1.725
0.01
0.21
0.005
1-3/4
2-1/8
328
1.85
0.01
0.21
0.005
1-7/8
2-1/4
329
1.975
0.01
0.21
0.005
2
2-3/8
330
2.1
0.01
0.21
0.005
2-1/8
2-1/2
331
2.225
0.01
0.21
0.005
2-1/4
2-5/8
332
2.35
0.01
0.21
0.005
2-3/8
2-3/4
333
2.475
0.01
0.21
0.005
2-1/2
2-7/8
334
2.6
0.01
0.21
0.005
2-5/8
3
335
2.725
0.015
0.21
0.005
2-3/4
3-1/8
336
2.85
0.015
0.21
0.005
2-7/8
3-1/4
337
2.975
0.015
0.21
0.005
3
3-3/8
338
3.1
0.015
0.21
0.005
3-1/8
3-1/2
339
3.225
0.015
0.21
0.005
3-1/4
3-5/8
340
3.35
0.015
0.21
0.005
3-3/8
3-3/4
341
3.475
0.015
0.21
0.005
3-1/2
3-7/8
342
3.6
0.015
0.21
0.005
3-5/8
4
343
3.725
0.015
0.21
0.005
3-3/4
4-1/8
344
3.85
0.015
0.21
0.005
3-7/8
4-1/4
345
3.975
0.015
0.21
0.005
4
4-3/8
346
4.1
0.015
0.21
0.005
4-1/8
4-1/2
347
4.225
0.015
0.21
0.005
4-1/4
4-5/8
348
4.35
0.015
0.21
0.005
4-3/8
4-3/4
349
4.475
0.015
0.21
0.005
4-1/2
4-7/8
350
4.6
0.015
0.21
0.005
4-5/8
5
351
4.725
0.015
0.21
0.005
4-3/4
5-1/8
352
4.85
0.015
0.21
0.005
4-7/8
5-1/4
353
4.975
0.015
0.21
0.005
5
5-3/8
354
5.1
0.023
0.21
0.005
5-1/8
5-1/2
355
5.225
0.023
0.21
0.005
5-1/4
5-5/8
356
5.35
0.023
0.21
0.005
5-3/8
5-3/4
357
5.475
0.023
0.21
0.005
5-1/2
5-7/8
358
5.6
0.023
0.21
0.005
5-5/8
6
359
5.725
0.023
0.21
0.005
5-3/4
6-1/8
360
5.85
0.023
0.21
0.005
5-7/8
6-1/4
361
5.975
0.023
0.21
0.005
6
6-3/8
362
6.225
0.023
0.21
0.005
6-1/4
6-5/8
363
6.475
0.023
0.21
0.005
6-1/2
6-7/8
364
6.725
0.023
0.21
0.005
6-3/4
7-1/8
365
6.975
0.023
0.21
0.005
7
7-3/8
366
7.225
0.03
0.21
0.005
7-1/4
7-5/8
367
7.475
0.03
0.21
0.005
7-1/2
7-7/8
368
7.725
0.03
0.21
0.005
7-3/4
8-1/8
369
7.975
0.03
0.21
0.005
8
8-3/8
370
8.225
0.03
0.21
0.005
8-1/4
8-5/8
371
8.475
0.03
0.21
0.005
8-1/2
8-7/8
372
8.725
0.03
0.21
0.005
8-3/4
9-1/8
373
8.975
0.03
0.21
0.005
9
9-3/8
374
9.225
0.03
0.21
0.005
9-1/4
9-5/8
375
9.475
0.03
0.21
0.005
9-1/2
9-7/8
376
9.725
0.03
0.21
0.005
9-3/4
10-1/8
377
9.975
0.03
0.21
0.005
10
10-3/8
378
10.48
0.03
0.21
0.005
10-1/2
10-7/8
379
10.98
0.03
0.21
0.005
11
11-3/8
380
11.48
0.03
0.21
0.005
11-1/2
11-7/8
381
11.98
0.03
0.21
0.005
12
12-3/8
382
12.975
0.03
0.21
0.005
13
13-3/8
383
13.975
0.03
0.21
0.005
14
14-3/8
384
14.975
0.03
0.21
0.005
15
15-3/8
385
15.955
0.045
0.21
0.005
16
16-3/8
386
16.955
0.045
0.21
0.005
17
17-3/8
387
17.955
0.045
0.21
0.005
18
18-3/8
388
18.955
0.045
0.21
0.005
19
19-3/8
389
19.955
0.045
0.21
0.005
20
20-3/8
390
20.955
0.045
0.21
0.005
21
21-3/8
391
21.955
0.045
0.21
0.005
22
22-3/8
392
22.94
0.06
0.21
0.005
23
23-3/8
393
23.94
0.06
0.21
0.005
24
24-3/8
394
24.94
0.06
0.21
0.005
25
25-3/8
395
   25.94
    0.06
    0.21
0.005
26
26-3/8
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