DIN 3771 (-1) - 1993O-Rings

Size code

1.8

2

2.24

2.5

2.8

3.15

3.55

3.75

4

4.5

4.75

4.87

5

5.15

5.3

d₁	max
d₁	min
d₂	1.8±0.08
	2.65±0.09
	3.55±0.10
	5.3±0.13
	7±0.15

1.93

2.13

2.37

2.63

2.94

3.29

3.69

3.89

4.14

4.64

4.9

5.02

5.15

5.3

5.45

1.67

1.87

2.11

2.37

2.66

3.01

3.41

3.61

3.86

4.36

4.6

4.72

4.85

5

5.15

1.8±0.08

/

Size code

5.6

6

6.3

6.7

6.9

7.1

7.5

8

8.5

8.75

9

9.5

9.75

10

10.6

d₁	max
d₁	min
d₂	1.8±0.08
	2.65±0.09
	3.55±0.10
	5.3±0.13
	7±0.15

5.75

6.15

6.45

6.86

7.06

7.26

7.66

8.16

8.66

8.92

9.17

9.67

9.92

10.17

10.78

5.45

5.85

6.15

6.54

6.74

6.94

7.34

7.84

8.34

8.58

8.83

9.33

9.58

9.83

10.42

1.8±0.08

/

Size code

11.2

11.6

11.8

12.1

12.5

12.8

13.2

14

14.5

15

15.5

16

17

18

19

d₁	max
d₁	min
d₂	1.8±0.08
	2.65±0.09
	3.55±0.10
	5.3±0.13
	7±0.15

11.38

11.79

11.99

12.29

12.69

12.99

13.39

14.19

14.7

15.2

15.7

16.2

17.21

18.21

19.22

11.02

11.41

11.61

11.91

12.31

12.61

13.01

13.81

14.3

14.8

15.3

15.8

16.79

17.79

18.78

1.8±0.08

/

1.8±0.08

/

1.8±0.08

/

2.65±0.09

/

3.55±0.10

/

Size code

20

20.6

21.2

22.4

23.6

24.3

25

25.8

26.5

27.3

28

30

31.5

32.5

33.5

d₁	max
d₁	min
d₂	1.8±0.08
	2.65±0.09
	3.55±0.10
	5.3±0.13
	7±0.15

20.22

20.83

21.43

22.64

23.84

24.55

25.25

26.06

26.76

27.57

28.28

30.29

31.81

32.82

33.82

19.78

20.37

20.97

22.16

23.36

24.05

24.75

25.54

26.24

27.03

27.72

29.71

31.19

32.18

33.18

/

2.65±0.09

3.55±0.10

/

Size code

34.5

35.5

36.5

37.5

38.7

40

41.2

42.5

43.7

45

46.2

47.5

48.7

50

51.5

d₁	max
d₁	min
d₂	1.8±0.08
	2.65±0.09
	3.55±0.10
	5.3±0.13
	7±0.15

34.83

35.84

36.85

37.86

39.07

40.38

41.59

42.9

44.11

45.42

46.63

47.94

49.15

50.46

51.97

34.17

35.16

36.15

37.14

38.33

39.62

40.81

42.1

43.29

44.58

45.77

47.06

48.25

49.54

51.03

/

2.65±0.09

/

3.55±0.10

/

5.3±0.13

/

Size code

53

54.5

56

58

60

61.5

63

65

67

69

71

73

75

77.5

80

d₁	max
d₁	min
d₂	1.8±0.08
	2.65±0.09
	3.55±0.10
	5.3±0.13
	7±0.15

53.48

55

56.51

58.52

60.54

62.05

63.56

65.58

67.59

69.61

71.63

73.64

75.66

78.17

80.69

52.52

54

55.49

57.48

59.46

60.95

62.44

64.42

66.41

68.39

70.37

72.36

74.34

76.83

79.31

/

3.55±0.10

5.3±0.13

/

Size code

82.5

85

87.5

90

92.5

95

97.5

100

103

106

109

112

115

118

122

d₁	max
d₁	min
d₂	1.8±0.08
	2.65±0.09
	3.55±0.10
	5.3±0.13
	7±0.15

83.21

85.73

88.25

90.77

93.29

95.81

98.33

100.84

103.87

106.89

109.91

112.93

115.95

118.97

123

81.79

84.27

86.75

89.23

91.71

94.19

96.67

99.16

102.13

105.11

108.09

111.07

114.05

117.03

121

/

3.55±0.10

5.3±0.13

/

7±0.15

Size code

125

128

132

136

140

142.5

145

147.5

150

152.5

155

157.5

160

162.5

165

d₁	max
d₁	min
d₂	1.8±0.08
	2.65±0.09
	3.55±0.10
	5.3±0.13
	7±0.15

126.03

129.05

133.08

137.1

141.13

143.65

146.17

148.69

151.2

153.72

156.24

158.76

161.27

163.79

166.31

123.97

126.95

130.92

134.9

138.87

141.35

143.83

146.31

148.8

151.28

153.76

156.24

158.73

161.21

163.69

/

3.55±0.10

/

3.55±0.10

5.3±0.13

/

5.3±0.13

/

5.3±0.13

/

5.3±0.13

7±0.15

Size code

167.5

170

172.5

175

177.5

180

182.5

185

187.5

190

195

200

203

206

212

d₁	max
d₁	min
d₂	1.8±0.08
	2.65±0.09
	3.55±0.10
	5.3±0.13
	7±0.15

168.83

171.34

173.86

176.38

178.9

181.41

183.93

186.44

188.96

191.48

196.51

201.55

204.57

207.59

213.63

166.17

168.66

171.14

173.62

176.1

178.59

181.07

183.56

186.04

188.52

193.49

198.45

201.43

204.41

210.37

/

3.55±0.10

/

5.3±0.13

/

5.3±0.13

/

5.3±0.13

-

5.3±0.13

7±0.15

/

7±0.15

/

7±0.15

Size code

218

224

227

230

236

239

243

250

254

258

261

265

268

272

276

d₁	max
d₁	min
d₂	1.8±0.08
	2.65±0.09
	3.55±0.10
	5.3±0.13
	7±0.15

219.67

225.71

228.73

231.75

237.79

240.81

244.83

251.88

255.91

259.93

262.96

266.98

270

274.02

278.05

216.33

222.29

225.27

228.25

234.21

237.19

241.17

248.12

252.09

256.07

259.04

263.02

266

269.98

273.95

/

5.3±0.13

7±0.15

/

7±0.15

/

7±0.15

Size code

280

283

286

290

295

300

303

307

311

315

320

325

330

335

340

d₁	max
d₁	min
d₂	1.8±0.08
	2.65±0.09
	3.55±0.10
	5.3±0.13
	7±0.15

282.08

285.1

288.12

292.14

297.18

302.21

305.23

309.25

313.28

317.3

322.34

327.37

332.4

337.43

342.46

277.92

280.9

283.88

287.86

292.82

297.79

300.77

304.75

308.72

312.7

317.66

322.63

327.6

332.57

337.54

/

5.3±0.13

7±0.15

Size code

345

350

355

360

365

370

375

379

383

387

391

395

400

406

412

d₁	max
d₁	min
d₂	1.8±0.08
	2.65±0.09
	3.55±0.10
	5.3±0.13
	7±0.15

347.49

352.53

357.56

362.59

367.62

372.65

377.68

381.71

385.73

389.76

393.78

397.81

402.84

408.87

414.91

342.51

347.47

352.44

357.41

362.38

367.35

372.32

376.29

380.27

384.24

388.22

392.19

397.16

403.13

409.09

/

5.3±0.13

/

7±0.15

Size code

418

425

429

433

437

443

450

456

462

466

470

475

479

483

487

d₁	max
d₁	min
d₂	1.8±0.08
	2.65±0.09
	3.55±0.10
	5.3±0.13
	7±0.15

420.95

427.99

432

436.04

440.07

446.11

453.15

459.18

465.22

469.24

473.27

478.3

482.32

486.34

490.37

415.05

422.01

426

429.96

433.93

439.89

446.85

452.82

458.78

462.76

466.73

471.7

475.68

479.66

483.63

/

7±0.15

Size code

493

500

508

515

523

530

538

545

553

560

570

580

590

600

608

d₁	max
d₁	min
d₂	1.8±0.08
	2.65±0.09
	3.55±0.10
	5.3±0.13
	7±0.15

496.41

503.45

511.5

518.54

526.59

533.63

541.68

548.72

556.77

563.81

573.87

583.93

593.99

604.05

612.09

489.59

496.55

504.5

511.46

519.41

526.37

534.32

541.28

549.23

556.19

566.13

576.07

586.01

595.95

603.91

/

7±0.15

Size code

615

623

630

640

650

660

670

d₁	max
d₁	min
d₂	1.8±0.08
	2.65±0.09
	3.55±0.10
	5.3±0.13
	7±0.15

619.13	627.18	634.22	644.28	654.34	664.4	674.46
610.87	618.82	625.78	635.72	645.66	655.6	665.54
/	/	/	/	/	/	/
/	/	/	/	/	/	/
/	/	/	/	/	/	/
/	/	/	/	/	/	/
7±0.15	7±0.15	7±0.15	7±0.15	7±0.15	7±0.15	7±0.15

1	[DIN] DIN 7603 (A) - 2001	Sealing Rings - Form A View Suppliers
2	[DIN] DIN 988 (P/PS) - 1990	Shim Rings View Suppliers
3	[DIN] DIN 3869 - 1994	Profil sealing rings
4	[DIN] DIN 443 - 2017	Sealing Push-In Caps
5	[DIN] DIN 3760 - 1996	Rotary Shaft Lip Seals
6	[DIN] DIN 86039 - 2000	Ships and Marine Technology - Flat Gaskets for Flange Connections Extra Light Duty on 32 to DN 50, up to PN 25, DN 65 to DN 125, up to PN 10
7	[DIN] DIN 470 - 2011	Sealing Washers
8	[DIN] DIN 89347 - 2008	Washers For Glands For Electrical Cables And Insulated Wires
9	[DIN] DIN 988 (S/SS) - 1990	Supporting Rings
10	[DIN] DIN 3770 - 1986	Sealing rings (O-rings) with special a accuracy, made of elastomeric
11	[ISO] ISO 3601-1 - 2012	Fluid Power Systems — O-Rings For Aerospace Applications
12	[DIN] DIN 443 - 2011	Sealing Push-In Caps
13	[DIN] DIN 7603 (D) - 2001	Sealing Rings - Form D
14	[ASME] ASME B 16.20 - 2012	Metallic Gaskets for Pipe Flanges ( Ring-Joint )
15	[DIN] DIN 443 - 1970	Sealing push-in caps
16	[ISO] ISO 11926-1 - 1995	Connections for general use and fluid power - Ports and stud ends with ISO 725 threads and O-ring seal - Part1: Port with O-ring sea in truncated housing
17	[DIN] DIN 470 - 2008	Sealing Washers
18	[DIN ISO] DIN ISO 3601-1 - 2013	Fluid Power Systems — O-Rings For Aerospace Applications
19	[DIN ISO] DIN ISO 3601-1 - 2013	Fluid Power Systems — O-Rings For General Industrial Applications
20	[ASME] ASME B 16.20 - 2012	Type RX ring gasket
21	[ISO] ISO 3601-1 - 2012	Fluid Power Systems — O-Rings For General Industrial Applications
22	[ISO] ISO 8434-1 (F) - 2018	O-ring
23	[DIN] DIN 7603 (C) - 2001	Sealing Rings - Form C
24	[JIS] JIS B 2401-1 (F) - 2012	O-Rings For General Industrial Appilcations
25	[GB] GB 3762 - 1983	Bite Type Tube Fittings - Tipping Washer
26	[GB] GB /T 9128 - 2003	Dimensions of metallic ring-joint gaskets for use with steel pipe flanges
27	[GB] GB 1235 - 1976	O-rings, Inside Diameters, Cross-sections, Tolerances And Size Identification Code
28	[GB] GB /T 3452.1 (A) - 2005	Fluid power systems — O-rings — A seriers
29	[GB] GB /T 13871.1 - 2007	Rotary shaft lip type seals incorporating elastomeric sealing elements
30	[GB] GB /T 10708.1 - 2000	Rubber Seals On One-way
31	[GB] GB /T 10708.3 - 2000	wiper riitg ( scraper ) - Type A
32	[GB] GB /T 3452.1 (G) - 2005	Fluid power systems — O-rings — G seriers
33	[WS] WS 9260	Sealing washers with EPDM
34	[SAE] SAE AS 568 - 2020	Aerospace Size Standard for O-Rings
35	[GOST] GOST 28919 - 1991	Flange Connections of Wellhead Equipment - Gasket - П
36	[GOST] GOST 28919 - 1991	Flange Connections of Wellhead Equipment - Gasket - БX
37	[Others] NB/T 47024 - 2012	Nonmetallic gaskets
38	[SAE] SAE J 1926-1 - 2016	Connections for General Use and Fluid Power Ports and Stud Ends with ASME B1.1 Threads and O-Ring Sealing Part 1: Threaded Port with O-Ring Seal in Truncated Housing

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O-Rings

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