"STEEL,MIL-S-18729 COMP 4130 COND A,BODY,ALUMINUM ALLOY QQ-A-225/8 COMP 6061-T6 SPACER,ANODIZED MIL-A-8625 TY 2 CL 1,SHAPE,RETANGULAR SIDES WITH TRIANGULAR TOP,DIM.,4.000 IN. NOM HEIGHT,7.000 IN. NOM W,2.562 IN. NOM HEIGHT TRIANGULAR TOP U CHANNEL,1.937 IN. BETWEEN CHANNEL SIDES,ONE THRU HOLE 0.755 IN. DIA IN TOP CHANNEL 1.500 IN. FROM CHANNEL BOTTOM,FITTED W/1.875 IN. LG SPACER,BOLT AND NUT,TWO SPACERS FITTED W/BOLT AND NUT SECURE TOP AND BOTTOM SECTIONS OF LINKUSED W/COUPLING,EXTRACTION FORCE TRANSFER PLATFORM"