How to Build a Modern BookcaseUNF 2B, O-ring Boss inlet port. Hydraulic gear pump 4cc/rev 3.1 gpm @3000rpm 3625psi spline shaft 6.7hp cc sae -8, 3/4-16 unf 2b. SAE A, 2 bolt mounting flange. Hydraulic gear pump, Counter Clock-wise Rotation (when looking at pump shaft). 9Tooth, 16/32 DP, 5/8 diameter, spline shaft.

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