TM 10-1670-272-23&P 0033 00
0033 00-2
STITCHING AND RESTITCHING
Perform stitching and restitching as follows, refer to tables 1 and 2, below.
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 ¼-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 1. 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. Stitching and Restitching Specifications.
COMPONENT
RECOMMENDED
SEWING
MACHINE
(CODE SYMBOL)
STITCHES
PER INCH
THREAD
SIZE
Vent Cap
LD DN
7 to 11
E
Vent Line
MD ZZ
7 to 11
E
Radial Tape
LD ZZ
7 to 11
E
Gore Section
LD DN
7 to 11 Darn
E
Suspension Line
MD ZZ
7 to 11
E
