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Installation: 3 wire
and often used effectively as rudder-stock and pintle bushings
For best results use a rotary machine with a yellow polish pad
Shrinks at 257 deg F / 125 deg C
Groco Backing Block Fits Seacock 750 & 1000 Shore Power Cable Replacement Fittings Installation: 3 wireBB SERIES BACKING BLOCKS Flanged seacock installation is improved with the use of a backing block between the valve flange and the hull. Each size fits multiple seacock sizes. Press threaded inserts into the hull side of the backing block into the holes that match the seacock flange. Rigid 1 2" thickness provides secure installation but is flexible enough to conform to minor hull curvature. Will not swell or absorb moisture.
