接头尺寸表(重点)

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1、接头尺寸表国内通用尺寸扣型公扣小端外径(mm)尺寸扣型母扣端部台肩内径(mm)正规23145.17正规23065.123154.223078.633164.8933091.343190.46430119.9531110.2530142.8631130.02630154.7贯眼22170.08贯眼22094.532177.44320103.942196.21420124.11521126.78520150.5621150.37620174.1特殊4A11105特殊4A10122内平21160.35内平21074.4521171.442108831184.9

2、8310103.19411114.3410134.94511141.29510164.3611168.28610190.6国际通用国内现场叫法API扣型每英寸扣数公扣小头直径（mm）母扣台肩内径（mm）211×210211×210311×310NC26=23/8"IFNC31=27/8"IFNC38=31/2IFNC40=4FH444460.3571.3185.0689.6674.6187.71103.58110.334A11×4A10411×410NC44NC46=4IFNC50=41/2IFNC5644498.42103.73114.30117.51

3、19.06124.61134.91150.81NC61NC70NC77444126.6147.65161.85165.1187.33204.79231×230331×331431×43023/8REG27/8REG31/2REG41/2REG555547.6253.9765.0790.5768.277.7890.48119.06531×530631×630731×731831×83051/2REG65/8REG75/8REG85/8REG4444110.06131.03144.47167.84141.68153.99180.18204.39321×320

4、421×420521×520621×62031/2FH4〞FH=NC4041/2FH51/2FH65/8FH5454477.6289.6696.31126.79150.37102.79110.33123.83150.02173.83211×210211×210311×31023/8IF=NC2627/8IF=NC3131/2IF=NC3844460.3571.3185.0674.6187.71103.584A11×4A10411×410511×5104〞IF=NC4641/2IF=NC5051/2IF444103.73114.30141.32124.61

5、134.91163.91