ARMY TM 10-1670-281-23&P AIR FORCE T.O.  13C5-32-2 NAVY NAVAIR 13-1-32 2-19.  Repair - Sewing Procedures (cont). Table 2-3.  Stitching and Restitching Specifications. Recommended sewing machine Stitches Thread Code symbol (code symbol) per inch Size Canopy Gore section LD 7-11 E DN Darn E Vent and skirt bands (upper and lower lateral LD 7-11 E bands) Canopy line ZZ 7-11 E Suspension line ZZ 7-11 E Vent line ZZ 7-11 E Attaching loop (bridle loop) HD 5-8 3 Parachute inspection data pocket LD 7-11 E Tie cord loop ZZ 7-11 E Tie cord ZZ 7-11 E Pocket band ZZ 7-11 FF Radial seam reinforcement tape ZZ 7-11 E Radial seam LD 7-11 E Riser HD 5-8 6 Clevis loop buffer LD 7-11 E V-tab LD 7-11 FF ZZ 7-11 FF Deployment Bag HD 5-8 3 Bag closing loop HD 5-8 3 Bridle strap HD 5-8 3 Edge binding ZZ 7-11 E Horizontal strap HD 5-8 3 Panels, flaps, and cover MD 7-11 FF DN Darn E Locking stow loop HD 5-8 3 Locking stow slot reinforcement HD 5-8 3 Suspension line stow loop HD 5-8 3 Suspension line stow strap HD 5-8 3 Suspension line stow loop reinforcement HD 5-8 3 Cluster tie webbing HD 5-8 3 Riser extension tie loop HD 5-8 3 Riser extension tie strap HD 5-8 3 Riser extension cover end reinforcement MD 7-11 FF Vent line hole reinforcement HD 5-8 3 Deployment Line ( 111 -inch Long) HD 5-8 3 Reinforcement straps VHD 5-8 5 2-108