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76 mm Aluminum Mastbase Block

Part No. 1990
$301.40  Limited Quantities In Stock
Sheave Ø (mm)76 mm
Sheave Ø (in)3 in
Maximum line Ø (mm)12 mm
Maximum line Ø (in) 1/2 in
Maximum working load (kg)2273 kg
Maximum working load (lb)5000 lb

Low-profile mastbase halyard lead blocks are lightweight and can be grouped in a small area at the mastbase.

Sheave Ø (mm)76 mm
Sheave Ø (in)3 in
Length (mm)117 mm
Length (in)4 5/8 in
Width (mm)41 mm
Width (in)1 5/8 in
Height (mm)95 mm
Height (in)3 3/4 in
Weight (g)326 g
Weight (oz)11.5 oz
Maximum line Ø (mm)12 mm
Maximum line Ø (in) 1/2 in
Number of fasteners
Fasteners (mm)8 FH mm
Fasteners (in)5/16 FH in
Maximum working load (kg)2273 kg
Maximum working load (lb)5000 lb
Breaking load (lb)10000 lb
Breaking load (kg)4545 kg
Manual: 4542.pdf (open/save)
DWG: 1990.dwg (open/save)
DXF: 1990.dxf (open/save)
IGS: 1990.igs (open/save)
EPS: 1990.eps (open/save)
High-res JPG: 1990.jpg (open/save)

DO NOT use Harken equipment for human suspension unless product is specifically certified and labeled for such use.

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