成量石油钻具接头螺纹工作环规(数字型) 执行标准： API SPEC 7-2；GB/T 22512.2

1017419002

NC 26 (2 3/8 IF)

4

6.35

1:6

60.32

9

73.254

67.767

65.583

106.4

—

15.875

0.91

1017419003

NC 31 (2 7/8 IF)

4

6.35

1:6

73.02

9

86.335

80.848

78.664

130.2

—

15.875

0.91

1017419004

NC 35

4

6.35

1:6

79.38

9

95.174

89.687

87.503

133.4

—

15.875

1.36

1017419005

NC 38 (3 1/2 IF)

4

6.35

1:6

85.72

9

102.210

96.723

94.539

142.9

—

15.875

1.36