BS O-Ring Dimensions

BS O-Ring Dimensions



 
 

 


O-Rings are the most widely recognised seal and are commonly found in many different applications. Our most common types are rubber o-rings which are available in various compounds to suit your application. PAR supply the complete range of standard sizes. We also manufacture non standard sizes to order and can vulcanise rubber cords for larger sizes. When enquiring, please refer to the table below for all BS o-ring dimensions. Also, please state the rubber compound that you require.

BS Number

O-Ring Size (ID x Cross Section (mm))

Nominal Size (Inches)

 

 

ID OD Cross Section

BS001

0.74 x 1.02

1/32

3/32

1/32

BS002

1.07 x 1.27

3/64

9/64

3/64

BS003

1.42 x 1.52

1/16

3/16

1/16

BS004

1.78 x 1.78

5/64

13/64

1/16

BS005

2.57 x 1.78

3/32

7/32

1/16

BS006

2.90 x 1.78

1/8

1/4

1/16

BS007

3.68 x 1.78

5/32

9/32

1/16

BS008

4.47 x 1.78

3/16

5/16

1/16

BS009

5.28 x 1.78

7/32

11/32

1/16

BS010

6.07 x 1.78

1/4

3/8

1/16

BS011

7.65 x 1.78

5/16

7/16

1/16

BS012

9.25 x 1.78

3/8

1/2

1/16

BS013

10.82 x 1.78

7/16

9/16

1/16

BS014

12.42 x 1.78

1/2

5/8

1/16

BS015

14 x 1.78

9/16

11/16

1/16

BS016

15.6 x 1.78

5/8

3/4

1/16

BS017

17.17 x 1.78

11/16

13/16

1/16

BS018

18.77 x 1.78

3/4

7/8

1/16

BS019

20.35 x 1.78

13/16

15/16

1/16

BS020

21.95 x 1.78

7/8

1

1/16

BS021

23.52 x 1.78

15/16

1 1/16

1/16

BS022

25.12 x 1.78

1

1 1/8

1/16

BS023

26.7 x 1.78

1 1/16

1 3/16

1/16

BS024

28.3 x 1.78

1 1/8

1 1/4

1/16

BS025

29.87 x 1.78

1 13/16

1 5/16

1/16

BS026

31.47 x 1.78

1 1/4

1 3/8

1/16

BS027

33.05 x 1.78

1 5/16

1 7/16

1/16

BS028

34.65 x 1.78

1 3/8

1 1/2

1/16

BS029

37.82 x 1.78

1 1/2

1 5/8

1/16

BS030

41.0 x 1.78

1 5/8

1 3/4

1/16

BS031

44.17 x 1.78

1 3/4

1 7/8

1/16

BS032

47.35 x 1.78

1 7/8

2

1/16

BS033

50.52 x 1.78

2

2 1/8

1/16

BS034

53.7 x 1.78

2 1/8

2 1/4

1/16

BS035

56.87 x 1.78

2 1/4

2 3/8

1/16

BS036

60.05 x 1.78

2 3/8

2 1/2

1/16

BS037

63.22 x 1.781

2 1/2

2 5/8

1/16

BS038

66.4 x 1.78

2 5/8

2 3/4

1/16

BS039

69.57 x 1.78

2 3/4

2 7/8

1/16

BS040

72.75 x 1.78

2 7/8

3

1/16

BS041

75.92 x 1.78

3

3 1/8

1/16

BS042

82.27 x 1.78

3 1/4

3 3/8

1/16

BS043

88.62 x 1.78

3 1/2

3 5/8

1/16

BS044

94.97 x 1.78

3 3/4

3 7/8

1/16

BS045

101.32 x 1.78

4

4 1/8

1/16

BS046

107.67 x 1.78

4 1/4

4 3/8

1/16

BS047

114.02 x 1.78

4 1/2

4 5/8

1/16

BS048

120.37 x 1.78

4 3/4

4 7/8

1/16

BS049

126.72 x 1.78

5

5 1/8

1/16

BS050

133.07 x 1.78

5 1/4

5 3/8

1/16

BS102

1.25 x 2.62

1/16

1/4

3/32

BS103

2.06 x 2.62

3/32

9/32

3/32

BS104

2.85 x 2.62

1/8

5/16

3/32

BS105

3.63 x 2.62

5/32

11/32

3/32

BS106

4.42 x 2.62

3/16

3/8

3/32

BS107

5.23 x 2.62

7/32

13/32

3/32

BS108

6.02 x 2.62

1/4

7/16

3/32

BS109

7.60 x 2.62

5/16

1/2

3/32

BS110

9.20 x 2.62

3/8

9/16

3/32

BS111

10.77 x 2.62

7/16

5/8

3/32

BS112

12.37 x 2.62

1/2

11/16

3/32

BS113

13.95 x 2.62

9/16

3/4

3/32

BS114

15.55 x 2.62

5/8

13/16

3/32

BS115

17.12 x 2.62

11/16

7/8

3/32

BS116

18.72 x 2.62

3/4

15/16

3/32

BS117

20.30 x 2.62

13/16

1

3/32

BS118

21.90 x 2.62

7/8

1 1/16

3/32

BS119

23.47 x 2.62

15/16

1 1/8

3/32

BS120

25.07 x 2.62

1

1 3/16

3/32

BS121

26.65 x 2.62

1 1/16

1 1/4

3/32

BS122

28.25 x 2.62

1 1/8

1 5/16

3/32

BS123

29.82 x 2.62

1 13/16

1 3/8

3/32

BS124

31.42 x 2.62

1 1/4

1 7/16

3/32

BS125

33.0 x 2.62

1 5/16

1 1/2

3/32

BS126

34.6 x 2.62

1 3/8

1 9/16

3/32

BS127

36.17 x 2.62

1 7/16

1 5/8

3/32

BS128

37.77 x 2.62

1 1/2

1 11/16

3/32

BS129

39.35 x 2.62

1 9/16

1 3/4

3/32

BS130

40.95 x 2.62

1 5/8

1 5/8

3/32

BS131

42.52 x 2.62

1 11/16

1 3/4

3/32

BS132

44.12 x 2.62

1 3/4

1 15/16

3/32

BS133

45.7 x 2.62

1 13/16

2

3/32

BS134

47.30 x 2.62

1 7/8

2 1/16

3/32

BS135

48.90 x 2.62

1 15/16

2 1/8

3/32

BS136

50.47 x 2.62

2

2 3/16

3/32

BS137

52.07 x 2.62

2 1/16

2 1/4

3/32

BS138

53.64 x 2.62

2 1/8

2 5/16

3/32

BS139

55.25 x 2.62

2 3/16

2 3/8

3/32

BS140

56.82 x 2.62

2 1/4

2 7/16

3/32

BS141

58.42 x 2.62

2 5/16

2 1/2

3/32

BS142

59.99 x 2.62

2 3/8

2 9/16

3/32

BS143

61.60 x 2.62

2 7/16

2 5/8

3/32

BS144

63.17 x 2.62

2 1/2

2 11/16

3/32

BS145

64.77 x 2.62

2 9/16

2 3/4

3/32

BS146

66.34 x 2.62

2 5/8

2 13/16

3/32

BS147

67.95 x 2.62

2 11/16

2 7/8

3/32

BS148

69.52 x 2.62

2 3/4

2 15/16

3/32

BS149

71.12 x 2.62

2 13/16

3

3/32

BS150

72.70 x 2.62

2 7/8

3 1/16

3/32

BS151

75.87 x 2.62

3

3 3/16

3/32

BS152

82.22 x 2.62

3 1/4

3 7/16

3/32

BS153

88.57 x 2.62

3 1/2

3 11/16

3/32

BS154

94.92 x 2.62

3 3/4

3 15/16

3/32

BS155

101.27 x 2.62

4

4 3/16

3/32

BS156

107.62 x 2.62

4 1/4

4 7/16

3/32

BS157

113.97 x 2.62

4 1/2

4 11/16

3/32

BS158

120.32 x 2.62

4 3/4

4 15/16

3/32

BS159

126.67 x 2.62

5

5 3/16

3/32

BS160

133.02 x 2.62

5 1/4

5 7/16

3/32

BS161

139.37 x 2.62

5 1/2

5 11/16

3/32

BS162

145.72 x 2.62

5 3/4

5 15/16

3/32

BS163

152.07 x 2.62

6

6 3/16

3/32

BS164

158.42 x 2.62

6 1/4

6 7/16

3/32

BS165

164.77 x 2.62

6 1/2

6 11/16

3/32

BS166

171.12 x 2.62

6 3/4

6 15/16

3/32

BS167

177.47 x 2.62

7

7 3/16

3/32

BS168

183.82 x 2.62

7 1/4

7 7/16

3/32

BS169

190.17 x 2.62

7 1/2

7 11/16

3/32

BS170

196.52 x 2.62

7 3/4

7 15/16

3/32

BS171

202.87 x 2.62

8

8 3/16

3/32

BS172

209.22 x 2.62

8 1/4

8 7/16

3/32

BS173

215.57 x 2.62

8 1/2

8 11/16

3/32

BS174

221.92 x 2.62

8 3/4

8 15/16

3/32

BS175

228.27 x 2.62

9

9 3/16

3/32

BS176

234.62 x 2.62

9 1/4

9 7/16

3/32

BS177

240.97 x 2.62

9 1/2

9 11/16

3/32

BS178

247.32 x 2.62

9 3/4

9 15/16

3/32

BS201

4.34 x 3.53

3/16

7/16

1/8

BS202

5.94 x 3.53

1/4

1/2

1/8

BS203

7.52 x 3.53

5/16

9/16

1/8

BS204

9.12 x 3.53

3/8

5/8

1/8

BS205

10.69 x 3.53

7/16

11/16

1/8

BS206

12.29 x 3.53

1/2

3/4

1/8

BS207

13.87 x 3.53

9/16

13/16

1/8

BS208

15.47 x 3.53

5/8

7/8

1/8

BS209

17.04 x 3.53

11/16

15/16

1/8

BS210

18.64 x 3.53

3/4

1

1/8

BS211

20.22 x 3.53

13/16

1 1/16

1/8

BS212

21.82 x 3.53

7/8

1 1/8

1/8

BS213

23.39 x 3.53

15/16

1 3/16

1/8

BS214

24.99 x 3.53

1

1 1/4

1/8

BS215

26.57 x 3.53

1 1/16

1 5/16

1/8

BS216

28.17 x 3.53

1 1/8

1 3/8

1/8

BS217

29.74 x 3.53

1 13/16

1 7/16

1/8

BS218

31.34 x 3.53

1 1/4

1 1/2

1/8

BS219

32.92 x 3.53

1 5/16

1 9/16

1/8

BS220

34.52 x 3.53

1 3/8

1 5/8

1/8

BS221

36.09 x 3.53

1 7/16

1 11/16

1/8

BS222

37.69 x 3.53

1 1/2

1 3/4

1/8

BS223

40.87 x 3.53

1 5/8

1 7/8

1/8

BS224

44.09 x 3.53

1 3/4

2

1/8

BS225

47.22 x 3.53

1 7/8

2 1/8

1/8

BS226

50.39 x 3.53

2

2 1/4

1/8

BS227

53.57 x 3.53

2 1/8

2 3/8

1/8

BS228

56.75 x 3.53

2 1/4

2 1/2

1/8

BS229

59.92 x 3.53

2 3/8

2 5/8

1/8

BS230

63.09 x 3.53

2 1/2

2 3/4

1/8

BS231

66.27 x 3.53

2 5/8

2 7/8

1/8

BS232

69.44 x 3.53

2 3/4

3

1/8

BS233

72.62 x 3.53

2 7/8

3 1/8

1/8

BS234

75.80 x 3.53

3

3 1/4

1/8

BS235

78.97 x 3.53

3 1/8

3 3/8

1/8

BS236

82.14 x 3.53

3 1/4

3 1/2

1/8

BS237

85.32 x 3.53

3 3/8

3 5/8

1/8

BS238

88.49 x 3.53

3 1/2

3 3/4

1/8

BS239

91.67 x 3.53

3 5/8

3 7/8

1/8

BS240

94.84 x 3.53

3 3/4

4

1/8

BS241

98.02 x 3.53

3 7/8

4 1/8

1/8

BS242

101.20 x 3.53

4

4 1/4

1/8

BS243

104.37 x 3.53

4 1/8

4 3/8

1/8

BS244

107.54 x 3.53

4 1/4

4 1/2

1/8

BS245

110.72 x 3.53

4 3/8

4 5/8

1/8

BS246

113.89 x 3.53

4 1/2

4 3/4

1/8

BS247

117.07 x 3.53

4 5/8

4 7/8

1/8

BS248

120.24 x 3.53

4 3/4

5

1/8

BS249

123.42 x 3.53

4 7/8

5 1/8

1/8

BS250

126.60 x 3.53

5

5 1/4

1/8

BS251

129.77 x 3.53

5 1/8

5 3/8

1/8

BS252

132.95 x 3.53

5 1/4

5 1/2

1/8

BS253

136.12 x 3.53

5 3/8

5 5/8

1/8

BS254

139.30 x 3.53

5 1/2

5 3/4

1/8

BS255

142.47 x 3.53

5 5/8

5 7/8

1/8

BS256

145.64 x 3.53

5 3/4

6

1/8

BS257

148.82 x 3.53

5 7/8

6 1/8

1/8

BS258

152.0 x 3.53

6

6 1/4

1/8

BS259

158.34 x 3.53

6 1/4

6 1/2

1/8

BS260

164.70 x 3.53

6 1/2

6 3/4

1/8

BS261

171.04 x 3.53

6 3/4

7

1/8

BS262

177.40 x 3.53

7

7 1/4

1/8

BS263

183.74 x 3.53

7 1/4

7 1/2

1/8

BS264

190.10 x 3.53

7 1/2

7 3/4

1/8

BS265

196.44 x 3.53

7 3/4

8

1/8

BS266

202.80 x 3.53

8

7 1/4

1/8

BS267

209.14 x 3.53

8 1/4

7 1/2

1/8

BS268

215.50 x 3.53

8 1/2

7 3/4

1/8

BS269

221.84 x 3.53

8 3/4

9

1/8

BS270

228.20 x 3.53

9

7 1/4

1/8

BS271

234.55 x 3.53

9 1/4

7 1/2

1/8

BS272

240.90 x 3.53

9 1/2

7 3/4

1/8

BS273

247.25 x 3.53

9 3/4

10

1/8

BS274

253.60 x 3.53

10

10 1/4

1/8

BS275

266.29 x 3.53

10 1/2

10 3/4

1/8

BS276

278.99 x 3.53

11

11 1/4

1/8

BS277

291.69 x 3.53

11 1/2

11 3/4

1/8

BS278

304.39 x 3.53

12

12 1/4

1/8

BS279

329.79 x 3.53

13

13 1/4

1/8

BS280

355.19 x 3.53

14

14 1/4

1/8

BS281

380.59 x 3.53

15

15 1/4

1/8

BS282

405.26 x 3.53

16

16 1/4

1/8

BS283

430.66 x 3.53

17

17 1/4

1/8

BS284

456.06 x 3.53

18

18 1/4

1/8

BS309

10.47 x 5.33

7/16

7/16

3/16

BS310

12.07 x 5.33

1/2

1/2

3/16

BS311

13.64 x 5.33

9/16

9/16

3/16

BS312

15.24 x 5.33

5/8

5/8

3/16

BS313

16.82 x 5.33

11/16

11/16

3/16

BS314

18.42 x 5.33

3/4

3/4

3/16

BS315

19.99 x 5.33

13/16

13/16

3/16

BS316

21.59 x 5.33

7/8

7/8

3/16

BS317

23.17 x 5.33

15/16

15/16

3/16

BS318

24.77 x 5.33

1

1

3/16

BS319

26.34 x 5.33

1 1/16

1 1/16

3/16

BS320

27.94 x 5.33

1 1/8

1 1/8

3/16

BS321

29.52 x 5.33

1 13/16

1 3/16

3/16

BS322

31.12 x 5.33

1 1/4

1 5/8

3/16

BS323

32.69 x 5.33

1 5/16

1 11/16

3/16

BS324

34.29 x 5.33

1 3/8

1 3/4

3/16

BS325

37.47 x 5.33

1 1/2

1 7/8

3/16

BS326

40.64 x 5.33

1 5/8

2

3/16

BS327

43.82 x 5.33

1 3/4

2 1/8

3/16

BS328

46.99 x 5.33

1 7/8

2 1/4

3/16

BS329

50.17 x 5.33

2

2 3/8

3/16

BS330

53.34 x 5.33

2 1/8

2 1/2

3/16

BS331

56.52 x 5.33

2 1/4

2 5/8

3/16

BS332

59.69 x 5.33

2 3/8

2 3/4

3/16

BS333

62.87 x 5.33

2 1/2

2 7/8

3/16

BS334

66.64 x 5.33

2 5/8

3

3/16

BS335

69.22 x 5.33

2 3/4

3 1/8

3/16

BS336

72.39 x 5.33

2 7/8

3 1/4

3/16

BS337

75.57 x 5.33

3

3 3/8

3/16

BS338

78.74 x 5.33

3 1/8

3 1/2

3/16

BS339

81.92 x 5.33

3 1/4

3 5/8

3/16

BS340

85.09 x 5.33

3 3/8

3 3/4

3/16

BS341

88.27 x 5.33

3 1/2

3 7/8

3/16

BS342

91.44 x 5.33

3 5/8

4

3/16

BS343

94.62 x 5.33

3 3/4

4 1/8

3/16

BS344

97.79 x 5.33

3 7/8

4 1/4

3/16

BS345

100.97 x 5.33

4

4 3/8

3/16

BS346

104.14 x 5.33

4 1/8

4 1/2

3/16

BS347

107.32 x 5.33

4 1/4

4 5/8

3/16

BS348

110.49 x 5.33

4 3/8

4 3/4

3/16

BS349

113.67 x 5.33

4 1/2

4 7/8

3/16

BS350

116.84 x 5.33

4 5/8

5

3/16

BS351

120.02 x 5.33

4 3/4

5 1/8

3/16

BS352

123.19 x 5.33

4 7/8

5 1/4

3/16

BS353

126.37 x 5.33

5

5 3/8

3/16

BS354

129.54 x 5.33

5 1/8

5 1/2

3/16

BS355

132.72 x 5.33

5 1/4

5 5/8

3/16

BS356

135.89 x 5.33

5 3/8

5 3/4

3/16

BS357

139.07 x 5.33

5 1/2

5 7/8

3/16

BS358

142.24 x 5.33

5 5/8

6

3/16

BS359

145.42 x 5.33

5 3/4

6 1/8

3/16

BS360

148.59 x 5.33

5 7/8

6 1/4

3/16

BS361

151.77 x 5.33

6

6 3/8

3/16

BS362

158.12 x 5.33

6 1/4

6 5/8

3/16

BS363

164.47 x 5.33

6 1/2

6 7/8

3/16

BS364

170.82 x 5.33

4 3/4

7 1/8

3/16

BS365

177.17 x 5.33

7

7 3/8

3/16

BS366

183.52 x 5.33

7 1/4

7 5/8

3/16

BS367

189.87 x 5.33

7 1/2

7 7/8

3/16

BS368

196.22 x 5.33

7 3/4

8 1/8

3/16

BS369

202.57 x 5.33

8

8 3/8

3/16

BS370

208.92 x 5.33

8 1/4

8 5/8

3/16

BS371

215.27 x 5.33

8 1/2

8 7/8

3/16

BS372

221.62 x 5.33

8 3/4

9 1/8

3/16

BS373

227.97 x 5.33

9

9 3/8

3/16

BS374

234.32 x 5.33

9 1/4

9 5/8

3/16

BS375

240.67 x 5.33

9 1/2

9 7/8

3/16

BS376

247.02 x 5.33

9 3/4

10 1/8

3/16

BS377

253.37 x 5.33

10

10 3/8

3/16

BS378

266.07 x 5.33

10 1/2

10 7/8

3/16

BS379

278.77 x 5.33

11

11 3/8

3/16

BS380

291.47 x 5.33

11 1/2

11 7/8

3/16

BS381

304.17 x 5.33

12

12 3/8

3/16

BS382

329.57 x 5.33

13

13 3/8

3/16

BS383

354.97 x 5.33

14

14 3/8

3/16

BS384

380.37 x 5.33

15

15 3/8

3/16

BS385

405.26 x 5.33

16

16 3/8

3/16

BS386

430.66 x 5.33

17

17 3/8

3/16

BS387

456.06 x 5.33

18

18 3/8

3/16

BS388

481.38 x 5.33

19

19 3/8

3/16

BS389

506.78 x 5.33

20

20 3/8

3/16

BS390

532.18 x 5.33

21

21 3/8

3/16

BS391

557.58 x 5.33

22

22 3/8

3/16

BS392

582.68 x 5.33

23

23 3/8

3/16

BS393

608.08 x 5.33

24

24 3/8

3/16

BS394

633.48 x 5.33

25

25 3/8

3/16

BS395

658.88 x 5.33

26

26 3/8

3/16

BS425

113.67 x 7

4 1/2

5

1/4

BS426

116.84 x 7

4 5/8

5 1/8

1/4

BS427

120.02 x 7

4 3/4

5 1/4

1/4

BS428

123.19 x 7

4 7/8

5 3/8

1/4

BS429

126.37 x 7

5

5 1/2

1/4

BS430

129.54 x 7

5 1/8

5 5/8

1/4

BS431

132.72 x 7

5 1/4

5 3/4

1/4

BS432

135.89 x 7

5 3/8

5 7/8

1/4

BS433

139.07 x 7

5 1/2

6

1/4

BS434

142.24 x 7

5 5/8

6 1/8

1/4

BS435

145.42 x 7

5 3/4

6 1/4

1/4

BS436

148.59 x 7

5 7/8

6 3/8

1/4

BS437

151.77 x 7

6

6 1/2

1/4

BS438

158.12 x 7

6 1/4

6 3/4

1/4

BS439

164.47 x 7

6 1/2

7

1/4

BS440

170.82 x 7

4 3/4

7 1/4

1/4

BS441

177.17 x 7

7

7 1/2

1/4

BS442

183.52 x 7

7 1/4

7 3/4

1/4

BS443

189.87 x 7

7 1/2

8

1/4

BS444

196.22 x 7

7 3/4

8 1/4

1/4

BS445

202.57 x 7

8

8 1/2

1/4

BS446

215.27 x 7

8 1/2

9

1/4

BS447

227.97 x 7

9

9 1/2

1/4

BS448

240.67 x 7

9 1/2

10

1/4

BS449

253.37 x 7

10

10 1/2

1/4

BS450

266.07 x 7

10 1/2

11

1/4

BS451

278..77 x 7

11

11 1/2

1/4

BS452

291.47 x 7

11 1/2

12

1/4

BS453

304.17 x 7

12

12 1/2

1/4

BS454

316.87 x 7

12 1/2

13

1/4

BS455

329.57 x 7

13

13 1/2

1/4

BS456

342.27 x 7

13 1/2

14

1/4

BS457

354.97 x 7

14

14 1/2

1/4

BS458

367.67 x 7

14 1/2

15

1/4

BS459

380.37 x 7

15

15 1/2

1/4

BS460

393.07 x 7

15 1/2

16

1/4

BS461

405.26 x 7

16

16 1/2

1/4

BS462

417.96 x 7

16 1/2

17

1/4

BS463

430.66 x 7

17

17 1/2

1/4

BS464

443.36 x 7

17 1/2

18

1/4

BS465

456.06 x 7

18

18 1/2

1/4

BS466

468.76 x 7

18 1/2

19

1/4

BS467

481.46 x 7

19

19 1/2

1/4

BS468

494.16 x 7

19 1/2

20

1/4

BS469

506.86 x 7

20

20 1/2

1/4

BS470

532.26 x 7

21

21 1/2

1/4

BS471

557.66 x 7

22

22 1/2

1/4

BS472

582.68 x 7

23

23 1/2

1/4

BS473

608.08 x 7

24

24 1/2

1/4

BS474

633.48 x 7

25

25 1/2

1/4

BS475

658.88 x 7

26

26 1/2

1/4

BS901

4.7 x 1.42

BS902

6.02 x 1.63

BS903

7.65 x 1.63

BS904

8.92 x 1.83

BS905

10.72 x 1.83

BS906

11.90 x 1.98

BS907

13.46 x 2.08

BS908

16.36 x 2.21

BS909

17.93 x 2.46

BS910

19.18 x 2.46

BS911

21.92 x 2.95

BS912

23.47 x 2.95

BS913

25.04 x 2.95

BS914

26.61 x 2.95

BS916

29.74 x 2.95

BS918

34.42 x 2.95

BS920

37.47 x 3

BS924

43.69 x 3.00

BS928

53.09 x 3.00

BS932

59.36 x 3.00

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