TM10-3930-660-20 Section  III.  TOOL  AND  TEST  EQUIPMENT  REQUIREMENTS TOOL OR TEST EQUIPMENT REFERENCE MAINTENANCE NATIONAL/NATO CODE TOOL CATEGORY NOMENCLATURE STOCK NUMBER NUMBER FSCM 23 H Fabricated Tools for Repair of Differentials: Differential  Resistance  TOOl Yoke Nut Tool 24 0 Template,  Level 4910-01-074-0020 25 F Adapter, (1/2 to 3/4 in. drive) 26 O,F Cap and Plug Set 27 F Dial   Indicator 28 F Fabricated Tool for Repair of Wheel  Ends: Planetary  Hub  Drag  Tool B-22