INDEX TO PARTS, FIGURE 13 Reference Number 1 3 4 7 8 9 10 11 12 13 14 15 16 Functional Group 2 5 6 6700 6700 6700 6700 6702 6702 6700 6700 6700 6700 6702 6700 6702 6702 6702 6702 Item Name SCREW BEARING WASHER SCREW COVER MOUNT HOUSING SCREW COLLAR SCREW SETSCREW CARRIER PRISM BAND MOUNT SETSCREW Reference  Functional Item Numb  er Group Name 17 18 19 20 21 22 23 24 25 26 27 28 29 31 6702 6702 6703 6700 6700 6702 6702 6702 6702 6702 6702 6702 6702 6700 6702 SCREW SPRING CIRCLE SCREW SLEEVE MOUNT PRISM AY SCREW LENS AY RING LENS MOUNT PRISM SCREW SCREW 30 84