Select Page

Current Murrays Sports information regarding COVID-19 virus outbreak, our policy and status at this time. UPDATED 5/25/2020 At this time our warehouse is keeping up with demand, we are making every effort to ship same or next day but it is still possible that Shipping and delivery times may be effected.
Current COVID-19 Notice

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

You may also like…