TM 10-1670-296-20&P 0052 00
0052 00-2
Table 2-3. 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: Zigzag; 308 Stitch; Medium-Duty;
NSN 3530-01-181-1421.
LD ZZ
SEWING MACHINE, INDUSTRIAL: Zigzag; 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.
BT
SEWING MACHINE, INDUSTRIAL: Bartack (Local Purchase)
Darning Repair. Darning is a sewing procedure used to repair limited size holes, rips, and tears. A darning
repair may be made either by hand or by sewing machine, depending upon the method preferred and the
availability of equipment. However, a darning machine should be used to darn small holes and tears where
fabric is missing. A darning repair will be performed using the following procedures, as appropriate:
1. Machine darning. Proceed as follows:
a.
Using an authorized marking aid of contrasting color, mark a square around the damaged area and
ensure the marking is at least ¼-inch back from each edge of the damaged area.
b.
Darn the damaged area by sewing the material in a back and forth manner, using size A or E nylon
thread.
c.
Turn the material and stitch back and forth across the stitching made in b., above, until the hole or
tears are completely darned.
