High Pressure Face Seal Torque Chart
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NOTE: Do not allow hoses to twist when tightening fittings. Assembly torques are for face seal tube hose connections and for J1926 in. O-Ring stud ends for high pressure applications above 27.6 MPA (4,000 psi). Working pressure is 41.3 MPA (6,000 psi). |
OUO6043,0000014 -19-26MAR04-1/2 |
| Nominal Tube O.D./Hose I.D. | Face Seal Tube/Hose End | O-Ring Stud Ends | |||||||||
| Metric Tube O.D. | Inch Tube O.D. | Thread Size | Tube Nut/Swivel Nut Torque | Bulkhead Locknut Torque | Thread Size | Straight Fitting or Locknut Torque | |||||
| mm | Dash Size | (in.) | mm | (in.) | N·m | (lb-ft) | N·m | (lb-ft) | (in.) | N·m | (lb-ft) |
| 5 | -3 | 0.188 | 3.76 | - | - | - | - | - | 3/8-24 | ||
| 6 | -4 | 0.250 | 6.35 | 9/16-18 | 16 | 12 | 12 | 9 | 7/16-20 | 21 | 15 |
| 8 | -5 | 0.312 | 7.94 | - | - | - | - | - | 1/2-20 | ||
| 10 | -6 | 0.375 | 9.52 | 11/16-16 | 24 | 18 | 24 | 18 | 9/16-18 | 34 | 25 |
| 12 | -8 | 0.500 | 12.70 | 13/16-16 | 50 | 37 | 46 | 34 | 3/4-16 | 73 | 55 |
| 16 | -10 | 0.625 | 15.88 | 1-14 | 69 | 51 | 62 | 46 | 7/8-14 | 104 | 76 |
| 20 | -12 | 0.750 | 19.05 | 1-3/16-12 | 102 | 75 | 102 | 75 | 1-1/6-12 | 176 | 130 |
| 22 | -14 | 0.875 | 22.22 | 1-3/16-12 | 102 | 75 | 102 | 75 | 1-3/16-12 | 230 | 170 |
| 25 | -16 | 1.000 | 25.40 | 1-7/16-12 | 142 | 105 | 142 | 105 | 1-5/16-12 | 285 | 210 |
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NOTE: Torque tolerance is +15% or -20 % unless otherwise specified. |
OUO6043,0000014 -19-26MAR04-2/2 |