Description: 57 mm narrow mastcollar block
Sheave dia. (in): 2 1/4
Sheave dia. (mm): 57
Length (in): 3 1/2
Length (mm): 89
Weight (oz): 3.5
Weight (g): 99
Clevis pin dia. (in): 5/16
Clevis pin dia. (mm): 8
Max. line dia. (in): 3/8
Max. line dia. (mm): 10
Max. working load (lb): 1650
Max. working load (kg): 748
Breaking load (lb): 3300
Breaking load (kg): 1497
