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PART NUMBER INDEX - TM-9-5130-338-12P_66
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TM-9-5130-338-12P Forward Repair System (FRS) Model M7 Manual
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Table E-1.  STANDARD TORQUE VALUE GUIDE-Continued.
TM 9-5130-338-12&P APPENDIX E TORQUE VALUES FOR THREADED FASTENERS This  appendix  lists  the  torque  values  for  threaded  fasteners.    Follow  the  torque  values  as  specified  in  the  procedures throughout this manual.  When no torque value is given, use the following guides.  The guides are based on using clean, dry threads. NOTE · Reduce torque by 10 percent (%) when lubricating oil is used on threads (wet torque). · Reduce torque by 20% when installing new threaded fasteners. · Reduce torque by 30% when threading screw into aluminum, unless inserts are used. Table E-1.  STANDARD TORQUE VALUE GUIDE. Screw Torque A- Torque B- Torque C Socket Diameter No Dashes 3 Dashes 6 Dashes Size (SAE* Grade No. 2) (SAE Grade No. 5) (SAE Grade No. 8) lb-ft** N•m*** lb-ft N•m lb-ft N•m 1/4-20 UNC 3-5 4.1-6.8 6-8 8.1-10.8 10-12 13.6-16.3 7/16 1/4-28 UNF 4-6 5.4-8.1 8-10 10.8-13.6 9-14 12.2-19.0 7/16 5/16-18 UNC 7-11 9.5-14.9 13-17 17.6-23.0 19-24 25.8-32.5 1/2 5/16-24 UNF 7-11 9.5-14.9 14-19 19.0-25.8 23-28 31.2-38.0 1/2 3/8-16 UNC 14-18 19.0-24.4 26-31 35.3-42.0 39-44 52.9-59.7 9/16 3/8-24 UNF 15-19 20.3-25.8 30-35 40.7-47.5 46-51 62.4-69.1 9/16 7/16-14 UNC 23-28 31.2-38.0 44-49 59.7-66.4 65-70 88.1-94.9 5/8 7/16-20 UNF 23-28 31.2-38.0 44-54 59.7-73.2 69-79 93.6-107.1 5/8 1/2-13 UNC 32-37 43.4-50.2 65-75 88.1-101.7 95-105 128.8- 3/4 142.4 1/2-20UNF 34-41 46.1-55.6 73-83 99.0-112.5 113-123 153.2- 3/4 166.8 9/16-12 UNC 46-55 62.4-74.6 100-110 135.6-149.1 145-155 196.6- 13/16 210.1 9/16-19 UNF 47-57 63.7-77.3 107-117 145.1-158.6 165-175 223.7- 13/16 237.3 5/8-11 UNC 62-72 84.1-97.6 140-150 189.8-203.4 200-210 271.2- 15/16 284.7 5/8-18 UNF 67-77 90.8-104.4 153-163 207.4-221.0 235-245 318.6- 15/16 332.2 3/4-10 UNC 106-116 143.7-157.3 260-270 352.5-366.1 365-375 494.9- 1-1/4 508.4 E-1

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