MIL-DTL-10035L
For zig-zag stitching
- Type 304, 10 to 16
stitches per inch
For liner:
For all stitching, except stitching
- Type 301, 6 to 8
indicated by "Z" on drawing
stitches per inch
For stitching indicated by "Z" on
- Type 401, 6 to 8
drawing and for attachments of
stitches per inch.
slide fasteners
Chain portion of
stitching shall not
appear on outside
of liner.
For bartacking
- Bartack, 3/8 + 1/16
inch long with
1/8 + 1/32 inch bight
and shall contain 28
stitches.
3.3.1.2 Type 301 stitching. Ends of all stitching shall be backstitched or overstitched ½ inch minimum
except when caught in other stitching or turned under in the hem. Thread tension shall be maintained so
that there will be no loose stitching resulting in puckering of material sewn. The lock shall be imbedded
in the material sewn.
3.3.1.2.1 Repairs of type 301 stitching. Repairs of type 301 stitching shall be as follows:
a. When thread breaks or bobbin run-outs occur during sewing, the stitching shall be repaired
by restarting the stitching a minimum of one inch behind the end of the stitching. 1/
b. Thread breaks, two or more consecutively skipped stitches or run-off stitches noted during
inspection of the item (in-process or end item) shall be repaired by overstitching. The stitching shall start
a minimum of one inch before the defective area (1/2 inch on Box, Box and Cross and W-W stitching)
and continue a minimum of one inch beyond the defective area onto the existing stitching. Loose or
excessively tight stitching shall be repaired by removing the defective stitching, without damaging the
materials, and restitching in the required manner. 1/
1/ When making the above repairs, the ends of the stitching are not required to be
backstitched.
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