| NPS SIZE | OD(mm) | SCH5S | SCH10S | SCH10 | SCH20 | SCH30 | SCH40S&STD | SCH40 | SCH60 | SCH80S&XS | SCH80 | SCH100 | SCH120 | SCH140 | SCH160 | XXS |
| NPS 10 | 273.1 | - | 4.19 | - | 6.35 | 7.80 | 9.27 | 9.27 | 12.70 | 12.70 | 15.09 | 18.26 | 21.44 | 25.40 | 28.58 | 25.40 |
| NPS 12 | 323.9 | 3.96 | 4.57 | - | 6.35 | 8.38 | 9.53 | 10.31 | 14.27 | 12.70 | 17.48 | 21.44 | 25.40 | 28.58 | 33.32 | 25.40 |
| NPS 14 | 355.6 | 3.96 | 4.78 | 6.35 | 7.92 | 9.53 | 9.53 | 11.13 | 15.09 | 12.70 | 19.05 | 23.83 | 27.79 | 31.75 | 35.71 | - |
| NPS 16 | 406.4 | 4.19 | 4.78 | 6.35 | 7.92 | 9.53 | 9.53 | 12.70 | 16.66 | 12.70 | 21.44 | 26.19 | 30.96 | 36.53 | 40.49 | - |
| NPS 18 | 457.2 | 4.19 | 4.78 | 6.35 | 7.92 | 11.13 | 9.53 | 14.27 | 19.05 | 12.70 | 23.83 | 29.36 | 34.93 | 39.67 | 45.24 | - |
| NPS 20 | 508 | 4.78 | 5.54 | 6.35 | 7.92 | 12.70 | 9.53 | 15.09 | 20.62 | 12.70 | 26.19 | 32.54 | 38.10 | 44.45 | 50.01 | - |
| NPS 22 | 558.8 | 4.78 | 5.54 | 6.35 | 9.53 | 12.70 | 9.53 | 15.87 | 22.23 | 12.70 | 28.58 | 34.93 | 41.28 | 47.63 | 53.98 | - |
| NPS 24 | 609.6 | 5.54 | 6.35 | 6.35 | 9.53 | 14.27 | 9.53 | 17.48 | 24.61 | 12.70 | 30.96 | 38.89 | 46.02 | 52.37 | 59.54 | - |
| NPS 26 | 660.4 | - | - | - | 9.53 | - | 9.53 | - | - | 12.70 | - | - | - | - | - | - |
| NPS 28 | 711.2 | - | - | 7.92 | 12.70 | 15.88 | 9.53 | - | - | 12.70 | - | - | - | - | - | - |
| NPS 30 | 762.0 | 6.35 | 7.92 | 7.92 | 12.70 | 15.88 | 9.53 | - | - | 12.70 | - | - | - | - | - | - |
| NPS 32 | 812.8 | - | - | 7.92 | 12.70 | 15.88 | 9.53 | 17.48 | - | 12.70 | - | - | - | - | - | - |
| NPS 34 | 863.6 | 6.35 | 7.92 | 7.92 | 12.70 | 15.88 | 9.53 | 17.48 | - | 12.70 | - | - | - | - | - | - |
| NPS 36 | 914.4 | - | - | 7.92 | 12.70 | 15.88 | 9.53 | 19.05 | - | 12.70 | - | - | - | - | - | - |
