Pennoyer-Dodge Company |
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| NPTF Taper Pipe Rings & Plugs | ||||||||
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Nominal Size |
L-1 Ring Gage | L-2 ring Gage | Plain Taper Ring Gage |
L-1 Plug Gage |
L-3 Plug Gage |
Plain Taper Plug Gage | Handle Only | Handle Size |
| 1/16 - 27 | 283.00 | 331.00 | 361.00 | 129.00 | 149.00 | 232.00 | 20.00 | #1 |
| 1/8 - 27 | 252.00 | 331.00 | 361.00 | 116.00 | 118.00 | 232.00 | 20.00 | #2 |
| 1/4 - 18 | 247.00 | 340.00 | 361.00 | 121.00 | 124.00 | 232.00 | 20.00 | #3 |
| 3/8 - 18 | 258.00 | 340.00 | 361.00 | 142.00 | 149.00 | 232.00 | 20.00 | #3 |
| 1/2 - 14 | 273.00 | 355.00 | 361.00 | 158.00 | 165.00 | 232.00 | 20.00 | #4 |
| 3/4 - 14 | 299.00 | 378.00 | 408.00 | 170.00 | 185.00 | 255.00 | 20.00 | #4 |
| 1 - 11.5 | 324.00 | 421.00 | 433.00 | 190.00 | 208.00 | 269.00 | 20.00 | #5 |
| 1 1/4 - 11.5 | 384.00 | 474.00 | 464.00 | 210.00 | 221.00 | 283.00 | 20.00 | #5 |
| 1 1/2 - 11.5 | 403.00 | 505.00 | 525.00 | 239.00 | 247.00 | 311.00 | 20.00 | #5 |
| 2 - 11.5 | 494.00 | 590.00 | 577.00 | 288.00 | 294.00 | 424.00 | 20.00 | #5 |
| 2 1/2 - 8 | 561.00 | 703.00 | 675.00 | 453.00 | 464.00 | 634.00 | 35.00 | #6 |
| 3 - 8 | 689.00 | 830.00 | 819.00 | 505.00 | 510.00 | 695.00 | 35.00 | #6 |
