TM 9-2520-272-34&P 4-29 REPAIR CENTER HOUSING COMPONENTS  (SHEET 27 OF 31) Replace Screw Thread Inserts SCREW THREAD INSERT TABLE Screw Thread Insert Item Number Screw Thread Insert Part Number Fabricated Tool Parts Required Combination Wrenches Size Required Installation Depth Below Center Housing Bolt Size Nut Size Washer Size (18) 23049119 3/8-16 x 2 inch 3/8-16 3/8 inch 9/16 inch 0.005-0.062 inch (0.13-1.57 mm) (19) 23049118 5/16-18 x 2 inch 5/16-18 5/16 inch 1/2 inch 0.005-0.057 inch (0.13-1.57 mm) (20) 23018271 1/2-13 x 2 inch 1/2-13 1/2 inch 3/4 inch 0.005-0.077 inch (0.13-1.95 mm) Go to Sheet 28 Para.  4-29, Task 8 Change 2  4-217