
INT-NPT INT-NPT ANSI
Interrupted Taps for American Taper Pipe Threads Interrupted Taps for American Taper Pipe Threads
■ INT-NPT having low left-hand spiral flutes and having every other thread ground off, reduces cutting torque. INT-NPT is suitable for such Oxide sticky materials as stainless steels and chrome Recommended Tapping Speed depending on Materials molybdenum steels.
Low carbon steels Stainless steels Cast steels
| 低炭素鋼5 | ステンレス鋼5 | 鋳鋼5 |
| (m/min) | (m/min) | ( m/ min) |
TYPE:1 TYPE:2
Projection Projection
Segment:1G
| Size | Class | Code | Chamfer | L (inch) | ℓ (inch) | Projection (inch) | Ds (inch) | K (inch) | ℓk (inch) | No. of flutes | TYPE |
| For Am | erican | Pipe Thr | eads | l | |||||||
| 1/8-27 NPT | ANSI G | Y83151 | 3P | 2.125 | 0.75 | 0.312 | 0.437 | 0.328 | 0.375 | 5 | 1 |
| 1/8-27 NPT | ANSI G | Y83151BR | 3P | 2.125 | 0.75 | 0.312 | 0.437 | 0.328 | 0.375 | 5 | 1 |
| 1/8-27 NPT | ANSI G | Y83152 | 3P | 2.125 | 0.75 | 0.312 | 0.312 | 0.234 | 0.375 | 5 | 2 |
| 1/8-27 NPT | ANSI G | Y83152BR | 3P | 2.125 | 0.75 | 0.312 | 0.312 | 0.234 | 0.375 | 5 | 2 |
| 1/4-18 NPT | ANSI G | Y83153 | 3P | 2.437 | 1.062 | 0.459 | 0.562 | 0.421 | 0.437 | 5 | 1 |
| 1/4-18 NPT | ANSI G | Y83153BR | 3P | 2.437 | 1.062 | 0.459 | 0.562 | 0.421 | 0.437 | 5 | 1 |
| 3/8-18 NPT | ANSI G | Y83154 | 3P | 2.562 | 1.062 | 0.454 | 0.7 | 0.531 | 0.5 | 5 | 1 |
| 3/8-18 NPT | ANSI G | Y83154BR | 3P | 2.562 | 1.062 | 0.454 | 0.7 | 0.531 | 0.5 | 5 | 1 |
| 1/2-14 NPT | ANSI G | Y83155 | 3P | 3.125 | 1.375 | 0.579 | 0.687 | 0.515 | 0.625 | 5 | 2 |
| 1/2-14 NPT | ANSI G | Y83155BR | 3P | 3.125 | 1.375 | 0.579 | 0.687 | 0.515 | 0.625 | 5 | 2 |
| 3/4-14 NPT | ANSI G | Y83156 | 3P | 3.25 | 1.375 | 0.565 | 0.906 | 0.679 | 0.687 | 5 | 2 |
| 3/4-14 NPT | ANSI G | Y83156BR | 3P | 3.25 | 1.375 | 0.565 | 0.906 | 0.679 | 0.687 | 5 | 2 |
| 1 -11 1/2 NPT | ANSI G | Y83157 | 3P | 3.75 | 1.75 | 0.678 | 1.125 | 0.843 | 0.812 | 5 | 2 |
| 1 -11 1/2 NPT | ANSI G | Y83157BR | 3P | 3.75 | 1.75 | 0.678 | 1.125 | 0.843 | 0.812 | 5 | 2 |
| 1 1/4-11 1/2 NPT | ANSI G | Y83158 | 3P | 4 | 1.75 | 0.686 | 1.312 | 0.984 | 0.937 | 5 | 2 |
| 1 1/4-11 1/2 NPT | ANSI G | Y83158BR | 3P | 4 | 1.75 | 0.686 | 1.312 | 0.984 | 0.937 | 5 | 2 |
| 1 1/2-11 1/2 NPT | ANSI G | Y83159 | 3P | 4.25 | 1.75 | 0.699 | 1.5 | 1.125 | 1 | 7 | 2 |
| 1 1/2-11 1/2 NPT | ANSI G | Y83159BR | 3P | 4.25 | 1.75 | 0.699 | 1.5 | 1.125 | 1 | 7 | 2 |
| 2 -11 1/2 NPT | ANSI G | Y83160 | 3P | 4.5 | 1.75 | 0.667 | 1.875 | 1.406 | 1.125 | 7 | 2 |
| 2 -11 1/2 NPT | ANSI G | Y83160BR | 3P | 4.5 | 1.75 | 0.667 | 1.875 | 1.406 | 1.125 | 7 | 2 |