TM 10-1670-299-20&P TO 14D1-2-470-2 NAVAIR 13-1-41 Table 2-3.  STITCHING SPECIFICATION RECOMMENDED COMPONENT SEWING MACHINE STITCHES THREAD (CODE SYMBOL) PER INCH SIZE Extension, Static Line Assembly VHD 5 to 8 6 SCUBA Set, Accessory 96-Inch Harness Backstrap VD 5 to 8 6 Support Strap HD 5 to 8 3 Waistband Extension Strap LD 7 to 11 E Lowering Line, General LD 7 to 11 E Snap hook HD 6 to 9 3 Attaching Web LD 7 to 11 E Jump Pack DRAGON HD 4 to 6 3 Darning DN Darn E Tack Felt Plug HD 4 to 6 3 Lowering Line LD 7 to 9 E Harness, Single Point Release Harness Stitching HD 6 to 8 3 Attaching Harness Strap HD 6 to 8 3 Darning DN or ZZ Darn E Loops "A", "B", "C" ZZ 7 to 11 E Lanyard HD 6 to 8 3 Retainer Loop Attachment to Release MD 7 to 9 FF Assembly Elastic Keeper Keeper Assembly MD 7 to 9 FF Attachment to Release Assy. MD 7 to 9 FF Attachment of Hook & Pile MD 7 to 9 FF Tapes Jump Pack AT4: Pack Body Patching HD 5 to 8 FF/3 Darning DN or ZZ Darn E/F Plugging Felt HD 5 to 8 FF/3 Binding Tape HD 5 to 8 FF/3 Rifle Butt or Muzzle Pockets HD 5 to 8 FF/3 Lowering Line Pocket Pocket Assembly MD 5 to 8 FF Hook and Pile Assembly MD 5 to 8 FF Attachment to Pack HD 5 to 8 3 2-41