Outside Dia

Socked type

Structural Diameter

Size

Do

d1

d2

I

d

L

1/2″

30.5

21.54

21.23

24.22

16.5

74.44

3/4″

37

26.87

26.57

27.4

24

84.8

1″

45.5

33.66

33.27

30.58

27.5

96.16

1-1/4″

54

42.42

42.04

34.75

35

115.5

1-1/2″

60

48.56

48.11

37.93

41

127.9

2″

73

60.63

60.17

41.1

51.5

145.7

2-1/2″

90

73.38

72.85

47.45

69

172.9

3″

106

89.31

88.70

50.63

80

197.26

4″

133

114.76

114.07

60.15

109

239.2