| GENERAL CHARACTERISTICS ITEM DESCRIPTION | ALUMINUM ALLOY EXTRUSION,7075-T651,SPEC ASTM B221; PROTECTIVE FINTSH WITH 7.5.2 OF MIL-STD-171,DYED BLACK; 4.100 IN. O/A OUTSIDE DIA; 10.580 IN. O/A LONG; NINE PLACES LOCATED ON 3.680 IN. DIA,NO. 8-32UNC-2B BY 0.550 IN. DEEP; A TOTAL OF 57 BUTTRESS PROFILES REQD FROM STARTING SURFACE EXTENDING 9.0625 IN. LENGTH BY 0.974 IN. INSIDE DIA; USED ON CRTG 105MM APFSDS-T,XM833 |