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

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HARKEN

57mm Black Magic® AirBlocks®

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

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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

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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

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

57mm Black Magic AirBlock, High-Load Single Swivel, 2,500lb. SWL, 5.0oz. from HARKEN
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. Cheek Material/Finish: 6160-T6 Hardkote anodized aluminum . Sheave Size: 57mm (2-1/4") . Construction: Three fasteners for quick disassembly. Plastic isolators separate dissimilar metals. Three-way head system.
$129.97

57mm Black Magic AirBlock, Flip-Flop with Lockoff, 2,500lb. SWL, 11.8oz. from HARKEN
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. Cheek Material/Finish: 6160-T6 Hardkote anodized aluminum . Sheave Size: 57mm (2-1/4") . Construction: Three fasteners for quick disassembly. Plastic isolators separate dissimilar metals. Three-way head system.
$261.33

57mm Black Magic AirBlock, Single Foot, 2,500lb. SWL, 4.2oz. from HARKEN
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. Cheek Material/Finish: 6160-T6 Hardkote anodized aluminum . Sheave Size: 57mm (2-1/4") . Construction: Three fasteners for quick disassembly. Plastic isolators separate dissimilar metals. Three-way head system.
~~$120.32~~ $120.32

57mm Black Magic AirBlock, Single Swivel with Becket, 1,655lb. SWL, 5.5oz. from HARKEN
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. Cheek Material/Finish: 6160-T6 Hardkote anodized aluminum . Sheave Size: 57mm (2-1/4") . Construction: Three fasteners for quick disassembly. Plastic isolators separate dissimilar metals. Three-way head system.
~~$144.88~~ $144.88

75mm Black Magic AirBlock, Single Swivel with Becket, 5,000lb. SWL, 12.4oz. from HARKEN
75mm Black Magic AirBlocks feature Torlon roller bearings and carbon black balls for strength and reduced wear. The unique center cage separates rollers for less friction, and sideload ball bearings are protected by sculpted aluminum sideplates. Dissimilar metals are isolated to minimize corrosion. Sheave: 6061-T6 Hardkote anodized aluminum . Sheave Size: 3" (75mm) except 1975 Spriddle fiddle block—3" and 2-1/4" (75mm and 57mm). Line Dia: 9/16" (14mm) max.
~~$351.99~~ $351.99

75mm Black Magic AirBlock, Single, 5,000lb. SWL, 11.5oz. from HARKEN
75mm Black Magic AirBlocks feature Torlon roller bearings and carbon black balls for strength and reduced wear. The unique center cage separates rollers for less friction, and sideload ball bearings are protected by sculpted aluminum sideplates. Dissimilar metals are isolated to minimize corrosion. Sheave: 6061-T6 Hardkote anodized aluminum . Sheave Size: 3" (75mm) except 1975 Spriddle fiddle block—3" and 2-1/4" (75mm and 57mm). Line Dia: 9/16" (14mm) max.
~~$311.53~~ $311.53

75mm Black Magic AirBlock, Standup, 5,000lb. SWL, 15.5oz. from HARKEN
75mm Black Magic AirBlocks feature Torlon roller bearings and carbon black balls for strength and reduced wear. The unique center cage separates rollers for less friction, and sideload ball bearings are protected by sculpted aluminum sideplates. Dissimilar metals are isolated to minimize corrosion. Sheave: 6061-T6 Hardkote anodized aluminum . Sheave Size: 3" (75mm) except 1975 Spriddle fiddle block—3" and 2-1/4" (75mm and 57mm). Line Dia: 9/16" (14mm) max.
~~$430.65~~ $430.65

75mm Black Magic AirBlock, Single Foot, 5,250lb. SWL, 10.2oz. from HARKEN
75mm Black Magic AirBlocks feature Torlon roller bearings and carbon black balls for strength and reduced wear. The unique center cage separates rollers for less friction, and sideload ball bearings are protected by sculpted aluminum sideplates. Dissimilar metals are isolated to minimize corrosion. Sheave: 6061-T6 Hardkote anodized aluminum . Sheave Size: 3" (75mm) except 1975 Spriddle fiddle block—3" and 2-1/4" (75mm and 57mm). Line Dia: 9/16" (14mm) max.
~~$245.69~~ $245.69

57mm Black Magic AirBlock, Single, 1,655lb. SWL, 5.0oz. from HARKEN
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. Cheek Material/Finish: 6160-T6 Hardkote anodized aluminum . Sheave Size: 57mm (2-1/4") . Construction: Three fasteners for quick disassembly. Plastic isolators separate dissimilar metals. Three-way head system.
~~$115.13~~ $115.13

75mm Black Magic AirBlock, Spriddle Fiddle, 5,000lb. SWL, 15.9oz. from HARKEN
75mm Black Magic AirBlocks feature Torlon roller bearings and carbon black balls for strength and reduced wear. The unique center cage separates rollers for less friction, and sideload ball bearings are protected by sculpted aluminum sideplates. Dissimilar metals are isolated to minimize corrosion. Sheave: 6061-T6 Hardkote anodized aluminum . Sheave Size: 3" (75mm) except 1975 Spriddle fiddle block—3" and 2-1/4" (75mm and 57mm). Line Dia: 9/16" (14mm) max.
~~$533.76~~ $533.76

100mm Black Magic AirBlock, Single/Swivel/Becket, 7,500lb. SWL, 22.6oz. from HARKEN
Used on offshore boats where weight and performance are critical. The 100mm range features free-rolling, large-diameter aluminum sheaves with Torlon roller bearings housed in a unique center cage. UV-resistant carbon-black Delrin balls carry sideloads. Blocks are Hardkote anodized and have 17-4PH stainless headposts and shackles. Easily disassembled. Ball Bearings: Torlon® Roller Bearings. Carbon-black Delrin® ball bearings . Sheave Size: 4" (100mm) . Line Dia: 5/8" max.
~~$516.33~~ $516.33

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

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