ARMY TM 10-1670-278-23&P
AIR FORCE T.O. 13C5-26-2
NAVY NAVAIR 13-1-27
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. Zig-zag stitching does not require locking; however, zig-zag
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.
Code symbol
Sewing machine
LD
SEWING MACHINE, INDUSTRIAL: General sewing; 301 stitch; light
duty; NSN 3530-01-177-8590.
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.
Table 2-3. Stitching and Restitching Specifications.
Recommended sewing machine
Stitches
Thread
Component
(code symbol)
per inch
size
Canopy
Gore panel
LD
7-11
E
DN
Darn
E
Panel edge reinforcement
LD
7-11
E
2-49
