(1) (2) (3) (  4  ) (5) (6) (7) (8) ILLUSTRATION (a) (b) FIG. ITEM SMR NO. NO. CODE NATIONAL STOCK NUMBER PART NUMBER FSCH DESCRIPTION QTY INC IN Usable   On   Code U/M UNIT 11 9 XBDZZ 314577 89905 LEVER EA 1 11 10 XBDZZ 163807 89905 SETSCREW EA 1 12 1 XBDZZ 107362 89905 BUSHING EA 1 12 2 XBDZZ 136067 89905 WASHER, PLATE EA 2 12 3 XBDZZ 176407 89905 SCREW EA 2 12 4 XBDZZ 175881 89905 SCREW EA 4 12 5 XADZZ 136151 89905 MOUNT,   LENS EA 1 12 6 XADZZ 129964 89905 LENS,    OBJECTIVE EA 1 12 7 XADZZ 136150 89905 MOUNT,  LENS EA 1 12 8 XADZZ 129961 89905 LENS, OBJECTIVE EA 1 12 9 XBDZZ 129957 89905 NUT, STOP EA 1 12 10 XADZZ 129247 89905 AXIS,  VERTICAL EA 1 12 11 XBDZZ 166993 89905 BEARING,   BALL EA 25 12 12 XADZZ 129995 89905 BEARING,    SHELL EA 1 12 13 XBDZZ 107361 89905 WASHER,   SPRING EA 1 12 14 XADZZ 319095 89905 SLEEVE, CIRCLE E A 1 12 15 XBDZZ 329591 89905 SCREW EA 1 12 16 XBDZZ 163816 89905 SETSCREW EA 8 12 17 XADZZ 129249 89905 CARRIER, PRISM EA 1 12 18 XBDZZ 358200 89905 PLATE EA 4 12 19 XBDZZ 332337 89905 PRISM,   READING, COMPOSED  OF  ITEMS  19  AND EA 2 19A WHICH CANNOT BE ORDERED SEPARATELY 12 20 XBDZZ 170545 89905 SETSCREW EA 2 12 21 XBDZZ 175232 89905 SETSCREW EA 2 12 22 XBDZZ 305166 89905 CIRCLE, HORIZONTAL EA 1 12 23 XBDZZ 171407 89905 SCREW EA 1 GROUP   04   -   U-STANDARD XBDDZ 360492-74 89905 U-STANDARD   ASSY EA 1 XBDZZ 360470 89905 U-STANDARD EA 1 XBDDZ 242666 89905 PRISM   ASSY,   SWITCHOVER 13, (FIG.        ITEMS EA 1 9 THROUGH 17, 20, 21, 26) 24   THROUGH XBDZZ 322595 89905 PRISM    ASSY    (FIG.    13, 32 ITEM       THROUGH 36) EA 1 2 - 7