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Harken Block 10:1 Mainsheet Carbo Boom

$201.40 each

SKU: 56-9955 Categories: , ,

Product Description

Harken’s 57mm, 5-sheave block with swivel is a boom block for use with #56-9953 for a 10:1 mainsheet system. Swivel can be locked, if desired.

Low-friction Carbo AirBlocksĀ® are lightweight, strong, reliable and affordable. These small, compact blocks have very high working loads for safe, easy trimming.


  • Sheave Diameter: 2-1/4″
  • Length: 4.3125″
  • Weight: 15 oz
  • Shackle Pin Diameter: 1/4″
  • Maximum Line Diameter: 7/16″
  • Harken #HC7668/ HAR2762



Additional information

Weight 0.94 lbs
Dimensions 5 × 5 × 3 in

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