| AS 568# | Nom Tube OD | Actual | |||||||||
| Decimal Inches | Metric Millimeters | ||||||||||
| ID | +/- | OD | Wall | +/- | ID | +/- | OD | Wall | +/- | ||
| -901 | 3/32 | 0.185 | 0.005 | 0.297 | 0.056 | 0.003 | 4.7 | 0.13 | 7.5 | 1.4 | 0.08 |
| -902 | 1/8 | 0.239 | 0.005 | 0.367 | 0.064 | 0.003 | 6.1 | 0.13 | 9.3 | 1.6 | 0.08 |
| -903 | 3/16 | 0.301 | 0.005 | 0.429 | 0.064 | 0.003 | 7.6 | 0.13 | 10.9 | 1.6 | 0.08 |
| -904 | 1/4 | 0.351 | 0.005 | 0.495 | 0.072 | 0.003 | 8.9 | 0.13 | 12.6 | 1.8 | 0.08 |
| -905 | 5/16 | 0.414 | 0.005 | 0.558 | 0.072 | 0.003 | 10.5 | 0.13 | 14.2 | 1.8 | 0.08 |
| -906 | 3/8 | 0.468 | 0.005 | 0.624 | 0.078 | 0.003 | 11.9 | 0.13 | 15.8 | 2.0 | 0.08 |
| -907 | 7/16 | 0.530 | 0.007 | 0.694 | 0.082 | 0.003 | 13.5 | 0.18 | 17.6 | 2.1 | 0.08 |
| -908 | 1/2 | 0.644 | 0.009 | 0.818 | 0.087 | 0.003 | 16.4 | 0.23 | 20.8 | 2.2 | 0.08 |
| -909 | 9/16 | 0.706 | 0.009 | 0.900 | 0.097 | 0.003 | 17.9 | 0.23 | 22.9 | 2.5 | 0.08 |
| -910 | 5/8 | 0.755 | 0.009 | 0.949 | 0.097 | 0.003 | 19.2 | 0.23 | 24.1 | 2.5 | 0.08 |
| -911 | 11/16 | 0.863 | 0.009 | 1.095 | 0.116 | 0.004 | 21.9 | 0.23 | 27.8 | 2.9 | 0.10 |
| -912 | 3/4 | 0.924 | 0.009 | 1.156 | 0.116 | 0.004 | 23.5 | 0.23 | 29.4 | 2.9 | 0.10 |
| -913 | 13/16 | 0.986 | 0.010 | 1.218 | 0.116 | 0.004 | 25.0 | 0.25 | 30.9 | 2.9 | 0.10 |
| -914 | 7/8 | 1.047 | 0.010 | 1.279 | 0.116 | 0.004 | 26.6 | 0.25 | 32.5 | 2.9 | 0.10 |
| -916 | 1 | 1.171 | 0.010 | 1.403 | 0.116 | 0.004 | 29.7 | 0.25 | 35.6 | 2.9 | 0.10 |
| -918 | 1 1/8 | 1.355 | 0.012 | 1.587 | 0.116 | 0.004 | 34.4 | 0.30 | 40.3 | 2.9 | 0.10 |
| -920 | 1 1/4 | 1.475 | 0.014 | 1.711 | 0.118 | 0.004 | 37.5 | 0.36 | 43.5 | 3.0 | 0.10 |
| -924 | 1 1/2 | 1.720 | 0.014 | 1.956 | 0.118 | 0.004 | 43.7 | 0.36 | 49.7 | 3.0 | 0.10 |
| -928 | 1 3/4 | 2.090 | 0.018 | 2.326 | 0.118 | 0.004 | 53.1 | 0.46 | 59.1 | 3.0 | 0.10 |
| -932 | 2 | 2.337 | 0.018 | 2.573 | 0.118 | 0.004 | 59.4 | 0.46 | 65.4 | 3.0 | 0.10 |