GB/T1800.3-1998 表1标准公差数值 基本尺寸 标准公差等级 mm ITl IT2 IT3 IT4 IT5 IT6 IT7 IT8 IT9 IT10 T1lIr12IT1 IT14 T16 IT17IT18 大于 3081.223 6101425406001014025040611.4 5812183048750.120.18030.480.751.21.8 61011.5254691522|3658900.15|0.2210.360.580.91.52.2 10181.2|2 811182743701100.180.271043071.11.827 18301.525 6913213352841300.21033|0.520.841.32.13.3 01.52.54711162539621001600250390.6211.62.539 508023581319 030.460741219346 12025461015223554871402200.350.540.871.422|3554 20180355812182540631001602500406311.62546.3 1802504571014202946721151852900460.721.151.85294672 250315681216233252811302103200.52|0.811.32132|5.28.1 315400791318 3657891402303600.57081.423365789 400500810152027406397155250400063|0971.55254639.7 50063091162234470110175280400.71.11.752844 6308001013182538508012520032050008|1.2523258125 800100011152128405690140|2303605600.91.42.33.65.6 0012501318243347661051652604206601.051.6526426.6105165 1250160015 293955781251953105007801.251953157.8125195 160020001825354865921502303706009201.523376921523 0415578101752804407001001.75284471117.528 2500315026 5068961352103305408603502.133548.61352133 1基本尺寸大于500mm的m1至m5的标准公差数值为试行的 2基本尺寸小于或等于1mm时,无rr14至mr18。表 标准公差数值 基本尺寸 标准公差等级 大于 至 注 基本尺寸大于 的 至 的标准公差数值为试行的 基本尺寸小于或等于 时 无 至