ARMY TM 10-1670-275-23&P
AIR FORCE TO 13C5-25-2
NAVY NAVAIR 13-1-26
Repair - Sewing Procedures (cont).
b. Stitching and Restitching. Perform stitching and restitching as follows, referring to tables 2-2 and 2-3:
(1) Parachute canopy assemblies. The stitching and restitching made on parachute canopies should be
accomplished with thread that is contrasting in color to the fabric being restitched. If contrasting color thread is
not available, thread of matching color may be used, providing all other specifications are met. Straight
stitching and restitching on parachute canopy assemblies should be locked by at least 2 inches at each end of a
stitch row, when possible. Zigzag stitching does not require locking; however, zigzag restitching should extend
at least 1/4 inch into undamaged stitching at each end, when possible. When restitching parachute canopy
assemblies, stitch directly over the original stitching and follow the original stitch pattern as closely as possible.
Table 2-2. Sewing Machine Code Symbols.
SEWING MACHINE, INDUSTRIAL: General sewing; 301 stitch; light duty;
SEWING MACHINE, INDUSTRIAL Zig-zag; 308 stitch; medium duty;
SEWING MACHINE, INDUSTRIAL: Zig-zag; 308 stitch; light duty;
SEWING MACHINE, INDUSTRIAL: General sewing; 301 stitch; heavy duty;
SEWING MACHINE, INDUSTRIAL: General sewing; 301 stitch; medium duty,
SEWING MACHINE, INDUSTRIAL: Darning; lock stitch;
SEWING MACHINE, INDUSTRIAL: 301 stitch; light heavy duty;
SEWING MACHINE, INDUSTRIAL 301 stitch; double-needle;
Table 2-3. Stitching and Restitching Specifications.
Recommended sewing machine(code symbol)
7 to 11