
■ The NPT tap is a hand tap for the American tapered pipe threads and is used for products whose main purpose is the tightness of threaded Oxide parts in the connection of parts for pipes.
Medium carbon steels High carbon steels Alloy steels
| 中炭素鋼5 | 高炭素鋼5 | 合金鋼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 | American | Pipe T | hreads | ||||||||
| 1/16-27 NPT | ANSI G | Y83100 | 3P | 2.125 | 0.687 | 0.312 | 0.312 | 0.234 | 0.375 | 4 | 1 |
| 1/16-27 NPT | ANSI G | Y83100BR | 3P | 2.125 | 0.687 | 0.312 | 0.312 | 0.234 | 0.375 | 4 | 1 |
| 1/8-27 NPT | ANSI G | Y83101 | 3P | 2.125 | 0.75 | 0.312 | 0.437 | 0.328 | 0.375 | 4 | 1 |
| 1/8-27 NPT | ANSI G | Y83101BR | 3P | 2.125 | 0.75 | 0.312 | 0.437 | 0.328 | 0.375 | 4 | 1 |
| 1/8-27 NPT | ANSI G | Y83102 | 3P | 2.125 | 0.75 | 0.312 | 0.312 | 0.234 | 0.375 | 4 | 2 |
| 1/8-27 NPT | ANSI G | Y83102BR | 3P | 2.125 | 0.75 | 0.312 | 0.312 | 0.234 | 0.375 | 4 | 2 |
| 1/4-18 NPT | ANSI G | Y83103 | 3P | 2.437 | 1.062 | 0.459 | 0.562 | 0.421 | 0.437 | 4 | 1 |
| 1/4-18 NPT | ANSI G | Y83103BR | 3P | 2.437 | 1.062 | 0.459 | 0.562 | 0.421 | 0.437 | 4 | 1 |
| 3/8-18 NPT | ANSI G | Y83104 | 3P | 2.562 | 1.062 | 0.454 | 0.7 | 0.531 | 0.5 | 4 | 1 |
| 3/8-18 NPT | ANSI G | Y83104BR | 3P | 2.562 | 1.062 | 0.454 | 0.7 | 0.531 | 0.5 | 4 | 1 |
| 1/2-14 NPT | ANSI G | Y83105 | 3P | 3.125 | 1.375 | 0.579 | 0.687 | 0.515 | 0.625 | 4 | 2 |
| 1/2-14 NPT | ANSI G | Y83105BR | 3P | 3.125 | 1.375 | 0.579 | 0.687 | 0.515 | 0.625 | 4 | 2 |
| 3/4-14 NPT | ANSI G | Y83106 | 3P | 3.25 | 1.375 | 0.565 | 0.906 | 0.679 | 0.687 | 4 | 2 |
| 3/4-14 NPT | ANSI G | Y83106BR | 3P | 3.25 | 1.375 | 0.565 | 0.906 | 0.679 | 0.687 | 4 | 2 |
| 1 -11 1/2 NPT | ANSI G | Y83107 | 3P | 3.75 | 1.75 | 0.678 | 1.125 | 0.843 | 0.812 | 5 | 2 |
| 1 -11 1/2 NPT | ANSI G | Y83107BR | 3P | 3.75 | 1.75 | 0.678 | 1.125 | 0.843 | 0.812 | 5 | 2 |
| 1 1/4-11 1/2 NPT | ANSI G | Y83108 | 3P | 4 | 1.75 | 0.686 | 1.312 | 0.984 | 0.937 | 5 | 2 |
| 1 1/4-11 1/2 NPT | ANSI G | Y83108BR | 3P | 4 | 1.75 | 0.686 | 1.312 | 0.984 | 0.937 | 5 | 2 |
| 1 1/2-111/2 NPT | ANSI G | Y83109 | 3P | 4.25 | 1.75 | 0.699 | 1.5 | 1.125 | 1 | 6 | 2 |
| 1 1/2-111/2 NPT | ANSI G | Y83109BR | 3P | 4.25 | 1.75 | 0.699 | 1.5 | 1.125 | 1 | 6 | 2 |
| 2 -11 1/2 NPT | ANSI G | Y83110 | 3P | 4.5 | 1.75 | 0.667 | 1.875 | 1.406 | 1.125 | 6 | 2 |
| 2 -11 1/2 NPT | ANSI G | Y83110BR | 3P | 4.5 | 1.75 | 0.667 | 1.875 | 1.406 | 1.125 | 6 | 2 |