| GENERAL CHARACTERISTICS ITEM DESCRIPTION | MATERIAL FOR INLET COVERS SHALL HAVE THE FOLLOWING CHEMICAL COMPOSITION: 68-70 PCT COPPER NAVY SPEC 46-C-5 GRADE A WITH ZINC REMAINDER NAVY SPEC 46-Z-1 GRADE A; 5.34 IN. LONG; 3.485 IN. INSIDE DIA; 0.031 IN. THICKNESS ALL AROUND; 83.0 IN. RADIUS; 0.38 IN. NOSE CIRCUMFERENCE; INLET COVER USED FOR 8 INCH 55 CALIBER PROJECTILE MK 14 ALL MODS,MK 15 ALL MODS,MK 16 ALL MODS,MK 17 ALL MODS,MK 19 ALL MODS OR MK 27 ALL MODS |