Action Seals & Gaskets

 
Standard O-Ring Sizes and Dimensions
Chart AS568A -201 through -284

1/8" Cross-Section (w), actual .139"

No.

I.D."

Actual

O.D."

No.

I.D."

Actual

O.D."

No.

I.D."

Actual

O.D."

-201

3/16

0.171

7/16

-229

2-3/8

2.359

2-5/8

-257

5-7/8

5.859

6-1/8

-202

1/4

0.234

1/2

-230

2-1/2

2.484

2-3/4

-258

6

5.984

6-1/4

-203

5/16

.0296

9/16

-231

2-5/8

2.609

2-7/8

-259

6-1/4

6.234

6-1/2

-204

3/8

0.359

5/8

-232

2-3/4

2.734

3

-260

6-1/2

6.484

6-3/4

-205

7/16

0.421

11/16

-233

2-7/8

2.859

3-1/8

-261

6-3/4

6.734

7

-206

1/2

0.484

3/4

-234

3

2.984

3-1/4

-262

7

6.984

7-1/4

-207

9/16

0.546

13/16

-235

3-1/8

3.109

3-3/8

-263

7-1/4

7.234

7-1/2

-208

5/8

0.609

7/8

-236

3-1/4

3.234

3-1/2

-264

7-1/2

7.484

7-3/4

-209

11/16

0.671

15/16

-237

3-3/8

3.359

3-5/8

-265

7-3/4

7.734

8

-210

3/4

0.734

1

-238

3-1/2

3.484

3-3/4

-266

8

7.984

8-1/4

-211

13/16

0.796

1-1/16

-239

3-5/8

3.609

3-7/8

-267

8-1/4

8.234

8-1/2

-212

7/8

0.859

1-1/8

-240

3-3/4

3.734

4

-268

8-1/2

8.484

8-3/4

-213

15/16

0.921

1-3/16

-241

3-7/8

3.859

4-1/8

-269

8-3/4

8.734

9

-214

1

0.984

1-1/4

-242

4

3.984

4-1/4

-270

9

8.984

9-1/4

-215

1-1/16

1.046

1-5/16

-243

4-1/8

4.109

4-3/8

-271

9-1/4

9.234

9-1/2

-216

1-1/8

1.109

1-3/8

-244

4-1/4

4.234

4-1/2

-272

9-1/2

9.484

9-3/4

-217

1-3/16

1.171

1-7/16

-245

4-3/8

4.359

4-5/8

-273

9-3/4

9.734

10

-218

1-1/4

1.234

1-1/2

-246

4-1/2

4.484

4-3/4

-274

10

9.984

10-1/4

-219

1-5/16

1.296

1-9/16

-247

4-5/8

4.609

4-7/8

-275

10-1/2

10.484

10-3/4

-220

1-3/8

1.359

1-5/8

-248

4-3/4

4.734

5

-276

11

10.984

11-1/4

-221

1-7/16

1.421

1-11/16

-249

4-7/8

4.859

5-1/8

-277

11-1/2

11.484

11-3/4

-222

1-1/2

1.484

1-3/4

-250

5

4.984

5-1/4

-278

12

11.984

12-1/4

-223

1-5/8

1.609

1-7/8

-251

5-1/8

5.109

5-3/8

-279

13

12.984

13-1/4

-224

1-3/4

1.734

2

-252

5-1/4

5.234

5-1/2

-280

14

13.984

14-1/4

-225

1-7/8

1.859

2-1/8

-253

5-3/8

5.359

5-5/8

-281

15

14.984

15-1/4

-226

2

1.984

2-1/4

-254

5-1/2

5.484

5-3/4

-282

16

15.955

16-1/4

-227

2-1/8

2.109

2-3/4

-255

5-5/8

5.609

5-7/8

-283

17

16.955

17-1/4

-228

2-1/4

2.234

2-1/2

-256

5-3/4

5.734

6

-284

18

17.955

18-1/4

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