 0015 00   TM 10-1670-287-23&P  STITCHING AND RESTITCHING  Perform stitching and re-stitching as follows, refer to Tables 1 and 2.  1. Parachute canopy assemblies. The stitching and re-stitching made on parachute canopies should be  accomplished with thread that is contrasting in color to the fabric being re-stitched. If contrasting  color thread is not available, thread of matching color may be used, providing all other specifications  are met. Straight stitching and re-stitching on parachute canopy assemblies should be locked by at  least 2-inches at each end of a stitch row, when possible. Zig-Zag stitching does not require locking;  however, zig-zag re-stitching should extend at least ¼-inch into undamaged stitching at each end,  when possible. When re-stitching parachute canopy assemblies, stitch directly over the original  stitching and follow the original stitch pattern as closely as possible.  Table 1. Sewing Machine Code Symbols  CODE SYMBOL  SEWING MACHINE  LD SEWING MACHINE, INDUSTRIAL: General Sewing; 301 Stitch; Light-Duty; NSN  350-01-177-8590. MD ZZ  SEWING MACHINE, INDUSTRIAL: Zig-Zag; 308 Stitch; Medium-Duty; NSN  3530-01-181-1421.  LD ZZ  SEWING MACHINE, INDUSTRIAL: Zig-Zag; 308 Stitch; Light-Duty; NSN 3530- 01-181-1420.  HD SEWING MACHINE, INDUSTRIAL: General Sewing; 301 Stitch; Heavy-Duty;  NSN 3530-01-177-8588.  MD SEWING MACHINE, INDUSTRIAL: General Sewing; 301 Stitch; Medium-Duty;  NSN 3530-01-177-8591.  DN SEWING MACHINE, INDUSTRIAL: Darning; Lock Stitch; NSN 3530-01-177-8589. LHD SEWING MACHINE, INDUSTRIAL: 301 Stitch; Light-Heavy Duty; NSN 3530-01- 186-3079.  ND SEWING MACHINE, INDUSTRIAL: 301 Stitch; Double-Needle; NSN 3530-01- 182-2873.  BT SEWING MACHINE, AUTOMATIC: Box-X; (Local purchase, Herbert Jaffe/JF PN  HJ1615X1X56, Model Number 3334)  BT SEWING MACHINE, INDUSTRIAL: Bartack, 42 stitch (Local purchase,  Recommended PN HJ1466-1X42)  COMPONENT  RECOMMENDED SEWING MACHINE  (Code Symbol)  STITCHES PER INCH  THREAD  SIZE Harness/Container Panels/Closing Flaps  LD, DN  7 to 11  E  Binding Tape, ¾-in.  LD, MD, ZZ, BT  7 to 11/42  E  Tape, Hook and Pile  LD, MD, BT  7 to 11/42  E  Pocket, ARR (FF-2)  LD, ZZ  7 to 11  E  Pocket, ARR (AR2)  LD, MD  7 to 11  E  Table 2. Stitching and Re-stitching Specifications  0015 00-2  Change 1 