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

1017418002

NC 26 (2 3/8 IF)

4

6.35

1:6

76.2

19

69.952

67.767

±0.010

62.280

60.2

207

0.91

1017418003

NC 31 (2 7/8 IF)

4

6.35

1:6

88.9

19

83.033

80.848

±0.010

73.361

73.3

220

0.91

1017418004

NC 35

4

6.35

1:6

95.2

19

91.872

89.687

±0.010

84.200

82.1

226

1.36

1017418005

NC 38 (3 1/2 IF)

4

6.35

1:6

101.6

19

98.908

96.723

±0.010

91.236

89.1

233

1.36