| Fitting Dash and Thread Sizes | |||||||||
| O-ring Boss Fittings | |||||||||
| Tube OD | Dash No. | Thread | Hex Size | Oring | Torque inLbs | ||||
| 1/8 | -2 | 5/16-24 | 7/16 | 902 | 37 | ||||
| 3/16 | -3 | 3/8-24 | 1/2 | 903 | 68 | ||||
| 1/4 | -4 | 7/16-20 | 9/16 | 904 | 107 | ||||
| 5/16 | -5 | 1/2-20 | 5/8 | 905 | 145 | ||||
| 3/8 | -6 | 9/16-18 | 11/16 | 906 | 225 | ||||
| 1/2 | -8 | 3/4-16 | 7/8 | 908 | 420 | ||||
| 5/8 | -10 | 7/8-14 | 1" | 910 | 660 | ||||
| 3/4 | -12 | 1 1/16-12 | 1 1/4 | 912 | 900 | ||||
| 7/8 | -14 | 1 3/16-12 | 1 3/8 | 914 | 1000 | ||||
| 1" | -16 | 1 5/16-12 | 1 1/2 | 916 | 1200 | ||||
| 1 1/4 | -20 | 1 5/8-12 | 1 7/8 | 920 | 1600 | ||||
| 1 1/2 | -24 | 1 7/8-12 | 2 1/8 | 924 | 2000 | ||||
| 2" | -32 | 2 1/2-12 | 2 3/4 | 932 | 2800 | ||||
| Dash Number - Thread Size | |||||||||
| Tube OD | Dash No. | JIC 37 | SAE 45 | Inverted Flare | Flareless | ORB | NPTF | ||
| 1/8 | -2 | 5/16-24 | 5/16-24 | 5/16-28 | 5/16-24 | 5/16-24 | 1/8-27 | ||
| 3/16 | -3 | 3/8-24 | 3/8-24 | 3/8-24 | 3/8-24 | 3/8-24 | NA | ||
| 1/4 | -4 | 7/16-20 | 7/16-20 | 7/16-24 | 7/16-20 | 7/16-20 | 1/4-18 | ||
| 5/16 | -5 | 1/2-20 | 1/2-20 | 1/2-20 | 1/2-20 | 1/2-20 | NA | ||
| 3/8 | -6 | 9/16-18 | 5/8-18 | 5/8-18 | 9/16-18 | 9/16-18 | 1/4-18 | ||
| 7/16 | -7 | NA | 11/16-16 | 11/16-18 | NA | NA | NA | ||
| 1/2 | -8 | 3/4-16 | 3/4-16 | 3/4-18 | 3/4-16 | 3/4-16 | 1/2-14 | ||
| 5/8 | -10 | 7/8-14 | 7/8-14 | 7/8-18 | 7/8-14 | 7/8-14 | NA | ||
| 3/4 | -12 | 1 1/16-12 | 1 1/16-14 | 1 1/16-16 | 1 1/16-12 | 1 1/16-12 | 3/4-14 | ||
| 7/8 | -14 | 1 3/16-12 | 1 1/4-12 | NA | 1 3/16-12 | 1 3/16-12 | NA | ||
| 1" | -16 | 1 5/16-12 | 1 3/8-12 | NA | 1 5/16-12 | 1 5/16-12 | 1" - 11 1/2 | ||
| 1 1/4" | -20 | 1 5/8-12 | NA | NA | 1 5/8-12 | 1 5/8-12 | 1 1/4-11 1/2 | ||
| 1 1/2 | -24 | 1 7/8-12 | NA | NA | 1 7/8-12 | 1 7/8-12 | 1 1/2-11 1/2 | ||
| 2" | -32 | 2 1/2-12 | NA | NA | 2 1/2-12 | 2 1/2-12 | 2" - 11 1/2 | ||