Harken 57mm Aluminum Low-Load Mastcollar ESP Block (6mm pin) ACR Replacement Bulbs Model A Model Pt-1 Model

Model A Model Pt-1 Model B Model Pt-2 Model Pt-3   3/32 1/8 5/32 SCALE 3/16 7/32 1/4 9/32 5 6     10 11       10 9     15 13       15 12 14   18 15       20 16 16   20 16 18     25 20 19   22 18 20     28 23 21   24 19 22     30   22   26 21 24     35   27 25 28 23 25     38   30 28 30 25 27 25   40 33 30 32 27 29 27     42     33 34 29 31 39   44     36 36   33 31   45     38 38   36 33 6 46     39 39   37 34 7 47     40 40     36 9         41     37 10         42     39 11         43     40 12         44       14         45       16         46       18         47       20         49       25

2 mm Width (mm) 65

9 oz Includes 10 17-4 PH pawls

Eye-Jaw 3/4" Pin

Harken 57mm Aluminum Low-Load Mastcollar ESP Block (6mm pin) ACR Replacement Bulbs Model A Model Pt-1 ModelHarken 57mm Aluminum Low Load Mastcollar ESP Block (6mm pin) Cruising ESP blocks complement our existing blocks in looks and function, but are simpler in design and construction. Sheaves feature sleeve bearings to handle high static loads and are ideal for halyards or limited purchase systems on cruising boats. Technical Description Sheave (mm) 57 mm Sheave (in) 2 1 4 in Length (mm) 89 mm Length (in) 3 1 2 in Weight (g) 113 g Weight (oz) 4 oz Maximum