– 33 – BLOCK DIVISION, INC. BUSHINGS&STEELSPACERS MODEL NUMBER A B C 05014 1/4" 1/2" 1/2" 05038 3/8" 1/2" 1/2" 05516 5/16" 1/2" 1/2" 07538 3/8" 3/4" 3/4" Options: Available in Stainless Steel A B C C B A BUSHINGS.We offer 13 different sizes of Bushings. SPACERS.Block Division’s spacers are machined from solid bar stock. MODEL NUMBER A B C WEIGHT EACH TO BE USED WITH SHEAVE NUMBERS 17850 7/8" 1/2" 17/32" 0.06 lbs 04250 17863 7/8" 5/8" 17/32" 0.05 lbs 17875 7/8" 3/4" 17/32" 0.02 lbs 27850 7/8" 1/2" 21/32" 0.05 lbs 04375 27863 7/8" 5/8" 21/32" 0.04 lbs 27875 7/8" 3/4" 21/32" 0.03 lbs 57850 7/8" 1/2" 25/32" 0.07 lbs 04500 57863 7/8" 5/8" 25/32" 0.05 lbs 57875 7/8" 3/4" 25/32" 0.03 lbs 12575 1 1/4" 3/4" 7/8" 0.15 lbs Interchangeable with 05375, 05500, 06075, 06500 12578 1 1/4" 7/8" 7/8" 0.13 lbs 12510 1 1/4" 1" 7/8" 0.08 lbs 12518 1 1/4" 1 1/8" 7/8" 0.04 lbs