IIS Manufactures & Supplies Flange Bolting Washers

IIS Flange Washer are design relative to most Belleville spring designs is that the OD/ID ratio is small to fit standard flanges. IIS Flange Washer prevent bolt tension loss due to :

• Differential Thermal Expansion
• High Temperature Bolt Creep
• Packing and Gasket Relaxation
• Vibration.

H13 Tool Steel is the main material for this product group, with a working temperature to 1000°F. Materials, such as 17-7 PH Stainless Steel and INCONEL 718 and X-750 Alloys, are also available. H13 flange bolting is available at 30,000, 4000, and 60,000 psi bolt stress.

 

Bolt Size

Dimensions in MM

WS.NO.

SAP CODES

 

Outer Dia.    (De)

Inner Dia.    (Di)

Thickness          (t)

Height               (lo)

Cone Height (ho)

 

 

1/2"

25.70

13.46

3.05

3.38

0.33

9500

FB25.7X13.46X3.05H13

 

25.70

13.46

3.56

3.86

0.30

9501

FB25.7X13.46X3.56H13

 

25.70

13.46

3.81

4.32

0.28

3997

FB25.7X13.46X3.81H13

5/8"

29.16

16.28

3.71

4.06

0.36

9502

FB29.16X16.28X3.7H13

 

29.16

16.28

4.34

4.67

0.33

9503

FB29.16X16.28X4.3H13

 

29.16

16.28

4.90

5.21

0.30

3998

FB29.16X16.28X4.9H13

3/4"

34.77

19.33

4.55

4.95

0.41

9504

FB34.77X19.33X4.5H13

 

34.77

19.33

5.44

5.79

0.36

9505

FB34.77X19.33X5.4H13

 

34.77

19.33

6.12

6.45

0.33

3999

FB34.77X19.33X6.1H13

7/8"

40.34

22.66

5.26

5.74

0.48

9506

FB40.34X22.66X5.2H13

 

40.34

22.66

6.25

6.68

0.43

9507

FB40.34X22.66X6.2H13

 

40.34

22.66

7.16

7.54

0.38

4000

FB40.34X22.66X7.1H13

1"

45.92

25.93

5.79

6.40

0.61

9508

FB45.92X25.93X5.7H13

 

45.92

25.93

7.04

7.54

0.51

9509

FB45.92X25.93X7H13

 

45.92

25.93

8.33

8.74

0.41

4002

FB45.92X25.93X8.3H13

1-1/8"

51.38

29.11

6.71

7.34

0.64

9510

FB51.38X29.11X6.7H13

 

51.38

29.11

8.15

8.69

0.53

9511

FB51.38X29.11X8.1H13

 

51.38

29.11

9.63

10.06

0.43

4003

FB51.38X29.11X9.6H13

1-1/4"

58.62

32.31

7.52

8.28

0.76

9512

FB58.62X32.31X7.5H13

 

58.62

32.31

9.14

9.78

0.64

9513

FB58.62X32.31X9.1H13

 

58.62

32.31

10.49

11.05

0.56

9580

FB58.62X32.31X10H13

1-3/8"

62.69

35.59

8.46

9.19

0.74

9514

FB62.69X35.59X8.4H13

 

62.69

35.59

10.03

10.69

0.66

9515

FB62.69X35.59X10H13

 

62.69

35.59

11.51

12.09

0.58

4005

FB62.69X35.59X11H13

1-1/2"

68.02

38.76

9.30

10.08

0.79

9525

FB68.02X38.76X9.3H13

 

68.02

38.76

11.15

11.84

0.69

9526

FB68.02X38.76X11H13

 

68.02

38.76

12.93

13.51

0.58

4006

FB68.02X38.76X12H13

1-5/8"

74.96

41.86

10.06

10.97

0.91

9527

FB74.96X41.86X10H13

74.96

41.86

12.24

13.00

0.76

9528

FB74.96X41.86X12H13

74.96

41.86

13.94

14.63

0.69

9581

FB74.96X41.86X13H13

1-3/4"

80.47

45.11

10.90

11.86

0.97

9529

FB80.47X45.11X10H13

80.47

45.11

13.21

14.02

0.81

9530

FB80.47X45.11X13H13

80.47

45.11

15.19

15.90

0.71

9582

FB80.47X45.11X15H13

1-7/8"

86.13

48.29

11.79

12.80

1.02

9531

FB86.13X48.29X11H13

86.13

48.29

14.22

15.09

0.86

9532

FB86.13X48.29X14H13

86.13

48.29

15.04

15.85

0.81

4009

FB86.13X48.29X15H13

2"

91.41

51.46

12.73

13.77

1.04

9534

FB91.41X51.46X12H13

91.41

51.46

15.06

16.00

0.94

9535

FB91.41X51.46X15H13

91.41

51.46

16.21

17.04

0.84

9583

FB91.41X51.46X16H13

2-1/4"

102.59

57.96

14.15

15.37

1.22

9537

FB102.59X57.96X14H13

102.59

57.96

17.20

18.21

1.02

9538

FB102.59X57.96X17H13

102.59

57.96

18.64

19.53

0.89

4011

FB102.59X57.9X1813

2-1/2"

113.84

64.24

15.90

17.22

1.32

9540

FB113.84X64.24X15H13

113.84

64.24

19.23

20.35

1.12

9541

FB113.84X64.24X19H13

113.84

64.24

20.57

21.59

1.02

4012

FB113.8X64.24X20H13

2-3/4"

124.94

70.54

17.65

19.08

1.42

9543

FB124.94X70.54X17H13

124.94

70.54

21.56

22.73

1.17

9544

FB124.94X70.54X21H13

124.94

70.54

22.66

23.77

1.12

4013

FB124.9X70.54X22H13

3"

136.12

76.89

19.18

20.75

1.57

9546

FB136.12X76.89X19H13

136.12

76.89

23.57

24.84

1.27

9547

FB136.12X76.89X23H13

136.12

76.89

25.30

26.44

1.14

4014

FB136.1X76.89X25H13

3-1/4"

137.08

83.64

26.39

27.51

1.12

9549

FB137.08X83.64X26H13

3-1/2"

155.70

89.54

30.38

31.55

1.17

9550

FB155.7X89.54X30H13

3-3/4"

169.29

96.98

32.39

33.71

1.32

9551

FB169.29X96.98X32H13

4"

181.10

102.87

38.10

39.57

1.47

9552

FB181.1X102.87X38H13


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