51-3849, 5/26/06 81
Hydraulic Torque Specifications
Face Seal: Assembly, Tube to Fitting
Note - Face seal fittings have the most reliable sealing method and therefore, should be used
whenever possible.
Installation
1. Make sure threads and sealing surfaces are free of burrs, nicks, scratches, or any foreign materials.
2. Install proper SAE o-ring to end of fitting if not already installed. Ensure o-ring is fully seated and retained properly.
3. Lubricate o-ring with a light coating of clean hydraulic oil.
4. Position tube and nut squarely on face seal of fitting and tighten nut finger tight.
5. Using appropriate torquing device, tighten to given torque rating from the table below.
NOTE - ft-lb may be converted to Newton Meters by multiplying by 1.35582.
NOTE - in-lbs may be converted to Newton Meters by multiplying by 0.11298.
Torque Values:
APPENDIX
TORQUE SPECS
SAE Dash Size
Tube Side
Thread Size
In-lbs Ft-lbs
-4 9/16 - 18 220 ± 10 18 ± 1
-6 11/16 - 16 320 ± 25 27 ± 2
-8 13/16 - 16 480 ± 25 40 ± 2
-10 1 - 14 750 ± 35 63 ± 3
-12 1 3/16 - 12 1080 ± 45 90 ± 4
-16 1 7/16 - 12 1440 ± 90 120 ± 8
-20 1 11/6 - 12 1680 ± 90 140 ± 8
-24 2 - 12 1980 ± 100 165 ± 8
