> Mechanical Seals
> ANSI Rebuild Kits
> HVAC Rebuild Kits
> Submersible Rebuild
Kits
> Misc. Rebuild Kits
> O-Rings


O-Rings Product Listing

Mesco Corporation offers O-rings in Buna, Viton, EPR, Aflas, Neoprene, and Teflon, Teflon Encapsulted and Kalrez. O-ring size can be determined by measuring the I.D., O.D. and thickness and matching it to the following size identification chart.

1/16" Cross-Section (w), actual .070"

No.

I.D."

Actual

O.D."

No.

I.D."

Actual

O.D."

No.

I.D."

Actual

O.D."

-001*

1/32

0.029

3/32

-018

3/4

0.739

7/8

-035

2-1/4

2.239

2-3/8

-002*

3/64

0.042

9/64

-019

13/16

0.801

15/16

-036

2-3/8

2.364

2-1/2

-003*

1/16

0.056

13/64

-020

7/8

0.864

1

-037

2-1/2

2.489

2-5/8

-004

5/64

0.070

13/64

-021

15/16

0.925

1-1/16

-038

2-5/8

2.614

2-3/4

-005

3/32

0101

7/32

-022

1

0.989

1-1/8

-039

2-3/4

2.739

2-7/8

-006

1/8

0.114

1/4

-023

1-1/16

1.051

1-3/16

-040

2-7/8

2.864

3

-007

5/32

0.145

9/32

-024

1-1/8

1.114

1-1/4

-041

3

2.989

3-1/8

-008

3/16

0.176

5/16

-025

1-3/16

1.176

1-5/16

-042

3-1/4

3.239

3-3/8

-009

7/32

0.208

11/32

-026

1-1/4

1.239

1-3/8

-043

3-1/2

3.489

3-5/8

-010

1/4

0.239

3/8

-027

1-5/16

1.301

1-7/16

-044

3-3/4

3.739

3-7/8

-011

5/16

0.301

7/16

-028

1-3/8

1.364

1-1/2

-045

4

3.989

4-1/8

-012

3/8

0.364

1/2

-029

1-1/2

1.489

1-5/8

-046

4-1/4

4.239

4-3/8

-013

7/16

0.426

9/16

-030

1-5/8

1.614

1-3/4

-047

4-1/2

4.489

4-5/8

-014

1/2

0.489

5/8

-031

1-3/4

1.739

1-7/8

-048

4-3/4

4.739

4-7/8

-015

9/16

0.551

11/16

-032

1-7/8

1.864

2

-049

5

4.989

5-1/8

-016

5/8

0.614

3/4

-033

2

1.989

2-1/8

-050

5-1/4

5.239

4-3/8

-017

11/16

0.676

13/16

-034

2-1/8

2.114

2-1/4

  
* Note - actual cross-section of -001 is 0.040"; -002 is 0.050"; -003 is 0-060"
3/32" Cross-Section (w), actual .103"

No.

I.D."

Actual

O.D."

No.

I.D."

Actual

O.D."

No.

I.D."

Actual

O.D."

-102

1/16

0.049

1/4

-127

1-7/16

1.424

1-5/8

-153

3-1/2

3.487

3-11/16

-103

3/32

0.081

9/32

-128

1-1/2

1.487

1-11/16

-154

3-3/4

3.737

3-15/16

-104

1/8

0.112

5/16

-129

1-9/16

1.549

1-3/4

-155

4

3.987

4-3/16

-105

5/32

0.143

11/32

-130

1-5/8

1.612

1-13/16

-156

4-1/4

4.237

4-7/16

-106

3/16

0.174

3/8

-131

1-11/16

1.674

1-7/8

-157

4-1/2

4.487

4-11/16

-107

7/32

0.206

13/32

-132

1-3/4

1.737

1-15/16

-158

4-3/4

4.737

4-15/16

-108

1/4

0.237

7/16

-133

1-13/16

1.799

2

-159

5

4.987

5-3/16

-109

5/16

0.299

1/2

-134

1-7/8

1.862

2-1/16

-160

5-1/4

5.237

5-7/16

-110

3/8

0.362

9/16

-135

1-15/16

1.925

2-1/8

-161

5-1/2

5.487

5-11/16

-111

7/16

0.424

5/8

-136

2

1.987

2-3/16

-162

5-3/4

5.737

5-15/16

-112

1/2

0.487

11/16

-137

2-1/16

2.050

2-1/4

-163

6

5.987

6-3/16

-113

9/16

0.549

3/4

-138

2-1/8

2.112

2-5/16

-164

6-1/4

6.237

6-7-16

-114

5/8

0.612

13/16

-139

2-3/16

2.175

2-3/8

-165

6-1/2

6.487

6-11/16

-115

11/16

0.674

7/8

-140

2-1/4

2.237

2-7/16

-166

6-3/4

6.737

6-15/16

-116

3/4

0.737

15/16

-141

2-5/16

2.300

2-1/2

-167

7

6.987

7-3/16

-117

13/16

0.799

1

-142

2-3/8

2.362

2-9/16

-168

7-1/4

7.237

7-7/16

-118

7/8

0.862

1-1/16

-143

2-7/16

2.425

2-5/8

-169

7-1/2

7.487

7-11/16

-119

15/16

0.924

1-18

-144

2-1/2

2.487

2-11/16

-170

7-3/4

7.737

7-15/16

-120

1

0.987

1-3/16

-145

2-9/16

2.550

2-3/4

-171

8

7.987

8-3/16

-121

1-1/16

10349

1-1/4

-146

2-5/8

2.612

2-13/16

-172

8-1/4

8.237

8-7/16

-122

1-1/8

1.112

1-5/16

-147

2-11/16

2.675

2-7/8

-173

8-1/2

4.487

8-11/16

-123

1-3/16

1.174

1-3/8

-148

2-3/4

2.737

2-15/16

-174

8-3/4

8.737

8-15/16

-124

1-1/4

1.237

1-7/16

-149

2-13/16

2.800

3

-175

9

8.987

9-3/16

-125

1-5/16

1.299

1-1/2

-150

2-7/8

2.862

3-1/16

-176

9-1/4

9.237

9-7/16

-126

1-3/8

1.362

1-9/16

-151

3

2.897

3-3/16

-177

9-1/2

9.487

9-11/16
 

-152

3-1/4

3.237

3-7/16

-178

9-3/4

9.737

9-15/16
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
3/16" Cross-Section (w), actual .210"

No.

I.D."

Actual

O.D."

No.

I.D."

Actual

O.D."

No.

I.D."

Actual

O.D."

-309

7/16

0.412

13/16

-338

3-1/8

3.100

3-1/2

-367

7-1/2

7.475

7-7/8

-310

1/2

0.475

7/8

-339

3-1/4

3.225

3-5/8

-368

7-3/4

7.725

8-1/8

-311

9/16

0.537

15/16

-340

3-3/8

3.350

3-3/4

-369

8

7.975

8-3/8

-312

5/8

0.600

1

-341

3-1/2

3.475

3-7/8

-370

8-1/4

8.225

8-5/8

-313

11/16

0.662

1-1/16

-342

3-5/8

3.600

4

-371

8-1/2

8.475

8-7/8

-314

3/4

0.725

1-1/8

-343

3-3/4

3.725

4-1/8

-372

8-3/4

8.725

9-1/8

-315

13/16

0.787

1-3/16

-344

3-7/8

3.850

4-1/4

-373

9

8.975

9-3/8

-316

7/8

0.850

1-1/4

-345

4

3.975

3-3/8

-374

9-1/4

9.225

9-5/8

-317

15/16

0.912

1-5/16

-346

4-1/8

4.100

4-1/2

-375

9-1/2

9.475

9-7/8

-318

1

0.975

1-3/8

-347

4-1/4

4.225

4-5/8

-376

9-3/4

9.725

10-1/8

-319

1-1/16

1.037

1-7/16

-348

4-3/8

4.350

4-3/4

-377

10

9.975

10-3/8

-320

1-1/8

1.100

1-1/2

-349

4-1/2

4.475

4-7/8

-378

10-1/2

10.475

10-7/8

-321

1-3/16

1.162

1-9/16

-350

4-5/8

4.600

5

-379

11

10.975

11-3/8

-322

1-1/4

1.225

1-5/8

-351

4-3/4

4.725

5-1/8

-380

11-1/2

11.475

11-7/8

-323

1-5/16

1.287

1-11/16

-352

3-7/8

4.850

5-1/4

-381

12

11.975

12-3/8

-324

1-3/8

1.350

1-3/4

-353

5

4.975

5-3/8

-382

13

12.975

13-3/8

-325

1-1/2

1.475

1-7/8

-354

5-1/8

5.100

5-1/2

-383

14

13.975

14-3/8

-326

1-5/8

1.600

2

-355

5-1/4

5.225

5-5/8

-384

15

14.975

15-3/8

-327

1-3/4

1.725

2-1/8

-356

5-3/8

5.350

5-3/4

-385

16

15.955

16-3/8

-328

1-7/8

1.850

2-1/4

-357

5-1/2

5.475

5-7/8

-386

17

16.955

17-3/8

-329

2

1.975

2-3/8

-358

5-5/8

5.600

6

-387

18

17.955

18-3/8

-330

2-1/8

2.100

2-1/2

-359

5-3/4

5.725

6-1/8

-388

19

18.955

19-3/8

-331

2-1/4

2.225

2-5/8

-360

5-7/8

5.850

6-1/4

-389

20

19.955

20-3/8

-332

3-3/8

2.350

2-3/4

-361

6

5.975

3-3/8

-390

21

20.955

21-3/8

-333

2-1/2

2.475

2-7/8

-362

6-1/4

6.225

6-5/8

-391

22

21.955

22-3/8

-334

2-5/8

2.600

3

-363

6-/12

6.475

6-7/8

-392

23

22.940

23-3/8

-335

2-3/4

2.725

3-1/8

-364

6-3/4

6.725

7-1/8

-393

24

23.940

24-3/8

-336

2-7/8

2.850

3-1/4

-365

7

6.975

7-3/8

-394

25

24.940

25-3/8

-337

3

2.975

3-3/8

-366

7-1/4

7.225

7-5/8

-395

26

25.940

26-3/8
New Sizes Available

No.

I.D."

Actual

O.D."

No.

I.D."

Actual

O.D."

No.

I.D."

Actual

O.D."

-400

1-3/8

1.350

1-7/8

-408

2-3/8

2.350

2-7/8

-416

3-3/8

3.350

3-7/8

-401

1-1/2

1.475

2

-409

2-1/2

2.475

3

-417

3-1/2

3.475

4

-402

1-5/8

1.600

2-1/8

-410

2-5/8

2.600

3-1/8

-418

3-5/8

3.600

4-1/8

-403

1-3/4

1.725

2-1/4

-411

2-3/4

2.725

3-1/4

-419

3-3/4

3.725

4-1/4

-404

1-7/8

1.850

2-3/8

-412

2-7/8

2.850

3-3/8

-420

3-7/8

3.850

4-3/8

-405

2

1.795

2-1/2

-413

3

2.975

3-1/2

-421

4

3.975

4-1/2

-406

2-1/8

2.100

2-5/8

-414

3-1/8

3.100

3-5/8

-422

4-1/8

4.100

4-5/8

-407

2-1/4

2.225

2-3/4

-415

3-1/4

3.225

3-3/4

-423

4-1/4

4.225

4-3/4
               

-424

4-3/8

4.350

4-7/8
1/4" Cross-Section (w), actual .275"

No.

I.D."

Actual

O.D."

No.

I.D."

Actual

O.D."

No.

I.D."

Actual

O.D."

-425

4-1/2

4.475

5

-442

7-1/4

7.225

7-3/4

-459

15

14.975

15-1/2

-426

4-5/8

4.600

5-1/8

-443

7-1/2

7.475

8

-460

15-1/2

15.475

16

-427

4-3/4

4.725

5-1/4

-444

7-3/4

7.725

8-1/4

-461

16

15.955

16-1/2

-428

4-7/8

4.850

5-3/8

-445

8

7.975

8-1/2

-462

16-1/2

16.455

17

-429

5

4.975

5-1/2

-446

8-1/2

8.475

9

-463

17

16.955

17-1/2

-430

5-1/8

5.100

5-5/8

-447

9

8.975

9-1/2

-464

17-1/2

17.455

18

-431

5-1/4

5.225

5-3/4

-448

9-1/2

9.475

10

-465

18

17.955

18-1/2

-432

5-3/8

5.350

5-7/8

-449

10

9.975

10-1/2

-466

18-1/2

18.455

19

-433

5-1/2

5.475

6

-450

10-1/2

10.475

11

-467

19

18.955

19-1/2

-434

5-5/8

5.600

6-1/8

-451

11

10.975

11-1/2

-468

19-1/2

19.455

20

-435

5-3/4

5.725

6-1/4

-452

11-1/2

11.475

12

-469

20

19.955

20-1/2

-436

5-7/8

5.850

6-3/8

-453

12

11.975

12-1/2

-470

21

20.955

21-1/2

-437

6

5.975

6-1/2

-454

12-1/2

12.475

13

-471

22

21.955

22-1/2

-438

6-1/4

6.225

6-3/4

-455

13

12.975

13-1/2

-472

23

22.940

23-1/2

-439

6-1/2

6.475

7

-456

13-1/2

13.475

14

-473

24

23.940

24-1/2

-440

6-3/4

6.725

7-1/4

-457

14

13.975

14-1/2

-474

25

24.940

25-1/2

-441

7

6.975

7-1/2

-458

14-1/2

14.475

15

-475

26

25.940

26-1/2
Home | About Us | Products | Order | Contact

Toll Free Phone 1.800.925.1987 fax 1.877.677.7325

Mesco Corporation sells quality aftermarket products from the EZ-2 line of mechanical seal and pump rebuild kits. All original equipment manufacturer’ names, numbers, symbols, codes, and descriptions are for reference only. It is not implied that any parts sold on this website is the product of any OEM including Allis Chalmers, Armstrong, Aurora, Bell & Gossett, Durco, Flygt, Goulds, Goulds G & L, Griswold, Marlow, Mission, Paco, Peerless, Summit, Taco, U.S. Seal, Pac Seal, John Crane and Worthington unless specifically stated otherwise.