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57 mm Aluminum Flip-Flop Block — Lockoff 57 mm Aluminum Flip-Flop Block — Lockoff
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57 mm Aluminum Flip-Flop Block — Lockoff

Part No. 3194
$306.80  Limited Quantities In Stock
Sheave Ø (mm)57 mm
Sheave Ø (in)2 1/4 in
Maximum line Ø (mm)10 mm
Maximum line Ø (in) 3/8 in
Maximum working load (kg)1136 kg
Maximum working load (lb)2500 lb

The low-profile Flip-Flop blocks are lightweight and can be used for various leads on your boat including halyard leads, mainsheet leads and spinnaker sheet leads.

Sheave Ø (mm)57 mm
Sheave Ø (in)2 1/4 in
Length (mm)111 mm
Length (in)4 3/8 in
Width (mm)57 mm
Width (in)2 1/4 in
Height (mm)73 mm
Height (in)2 7/8 in
Weight (g)317.8 g
Weight (oz)11.2 oz
Maximum line Ø (mm)10 mm
Maximum line Ø (in) 3/8 in
Fasteners (mm)6 SH mm
Fasteners (in)1/4 SH in
Maximum working load (kg)1136 kg
Maximum working load (lb)2500 lb
Breaking load (lb)5000 lb
Breaking load (kg)2273 kg
A (mm)93.6 mm
A (in)3 11/16 in
B (mm)39.7 mm
B (in)1 9/16 in
Manual: 4277.pdf (open/save)
DWG: 3194.dwg (open/save)
DXF: 3194.dxf (open/save)
IGS: 3194.igs (open/save)
EPS: 3194.eps (open/save)
High-res JPG: 3194.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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