American threaded boss is a tubular pipe fitting with one side threaded connection and other side butt welding connection.
Available size
| Size | Class 3000, D (mm) | Class 6000, D (mm) | End to end W/2 (mm) | Ref. No. |
|---|---|---|---|---|
| 1/2″ / DN15 / 21.3mm | 28 | 38 | 24 | N5101 |
| 3/4″ / DN20 / 26.7mm | 35 | 44 | 26 | N5102 |
| 1″ / DN25 / 33.4mm | 44 | 57 | 30 | N5103 |
| 1-1/4″ / DN32 / 42.2mm | 57 | 64 | 34 | N5104 |
| 1-1/2″ / DN40 / 48.3mm | 64 | 76 | 40 | N5105 |
| 2″ / DN50 / 60.3mm | 76 | 92 | 43 | N5106 |
| 2-1/2″ / DN65 / 73.0mm | 92 | 108 | 46 | N5107 |
| 3″ / DN80 / 88.9mm | 108 | 127 | 54 | N5108 |
| 4″ / DN100 / 114.3mm | 140 | 159 | 61 | N5109 |
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