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HARKEN

57mm Black Magic® AirBlocks®

57mm Black Magic AirBlock, High-Load Strap Head with Becket, 2,500lb. SWL, 3.6oz.

002_061_003_504

 

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Description WM Model# MFG Part# Price Availability QTY
57mm Black Magic AirBlock, Single, 1,655lb. SWL, 5.0oz. 583783 1950 Only $115.13 USD In Stock
57mm Black Magic AirBlock, Single Swivel with Becket, 1,655lb. SWL, 5.5oz. 583791 1951 Only $144.88 USD In Stock
57mm Black Magic AirBlock, High-Load Single Swivel, 2,500lb. SWL, 5.0oz. 189428 1958 Only $129.97 USD In Stock
57mm Black Magic AirBlock, High-Load Strap Head with Becket, 2,500lb. SWL, 3.6oz. 2785699 1961 Only $273.66 USD Usually ships within 5 to 8 days
57mm Black Magic AirBlock, Single Foot, 2,500lb. SWL, 4.2oz. 583825 1963 Only $120.32 USD Usually ships within 5 to 8 days
57mm Black Magic AirBlock, Flip-Flop with Lockoff, 2,500lb. SWL, 11.8oz. 9485780 3194 Only $261.33 USD In Stock
 

Over of 57mm Black Magic AirBlock, High-Load Strap Head with Becket, 2,500lb. SWL, 3.6oz.  

Overview of 57mm Black Magic AirBlock, High-Load Strap Head with Becket, 2,500lb. SWL, 3.6oz..

Strong, lightweight aluminum blocks for offshore boats

Used for sheets, halyards, running backstays and control lines on offshore boats, these strong, lightweight blocks are made of sculpted aluminum with Torlon rollers and carbon black balls for strength and UV protection.

  • Sheave: 6061-T6 Hardkote anodized aluminum
  • Cheek Material/Finish: 6160-T6 Hardkote anodized aluminum
  • Sheave Size: 57mm (2-1/4")
  • Line Dia: 7/16" (12mm) max
  • Construction: Three fasteners for quick disassembly. Plastic isolators separate dissimilar metals
  • Three-way head system. Swivels or can be locked in front/side position; 1/4" pin
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57mm Black Magic AirBlock, High-Load Strap Head with Becket, 2,500lb. SWL, 3.6oz.
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57mm Black Magic AirBlock, High-Load Strap Head with Becket, 2,500lb. SWL, 3.6oz.
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