TM 10-1670-269-23&P
0034 00
0034 00-2
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 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 3530-01-181-1420.
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 3530-01177-8588
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, INDUSTRIAL: BARTACK;
NSN 3530-00-892-4637
