M81914/6 • Standard Flex Convoluted ETFE Tubing
| Identifier | Size | Max. ID | Min. ID | Max. OD | Max. Wall | Convo. / Inch | Bend Radius | Mil Spec 81914/6 |
| 01 | 3/16 | .188 | .181 | .320 | .018 | 8 | .500 | 81914/6-1001 |
| 02 | 9/32 | .281 | .273 | .414 | .018 | 8 | .750 | 81914/6-1002 |
| 03 | 5/16 | .312 | .306 | .450 | .018 | 8 | .750 | 81914/6-1003 |
| 04 | 3/8 | .375 | .364 | .510 | .018 | 8 | .875 | 81914/6-1004 |
| 05 | 7/16 | .437 | .427 | .571 | .018 | 8 | .875 | 81914/6-1005 |
| 06 | 1/2 | .500 | .485 | .650 | .023 | 7 | 1.250 | 81914/6-1006 |
| 07 | 5/8 | .625 | .608 | .770 | .023 | 7 | 1.500 | 81914/6-1007 |
| 08 | 3/4 | .750 | .730 | .930 | .023 | 6 | 1.750 | 81914/6-1008 |
| 09 | 7/8 | .875 | .860 | 1.073 | .023 | 5 | 2.000 | 81914/6-1009 |
| 10 | 1 | 1.000 | .975 | 1.226 | .023 | 5 | 2.375 | 81914/6-1010 |
| 11 | 1 1/8 | 1.125 | 1.105 | 1.390 | .023 | 5 | 2.375 | 81914/6-1011 |
| 12 | 1 1/4 | 1.250 | 1.210 | 1.539 | .023 | 4 | 2.750 | 81914/6-1012 |
| 13 | 1 1/2 | 1.500 | 1.437 | 1.832 | .023 | 4 | 3.875 | 81914/6-1013 |
