MIL-DTL-28936B(MC)
Classification
Examine
Defects
Major
Minor
A
B
Seams and
2. Wrong stitch type.
317
stitching
f. Stitch tension.
(cont'd)
1. Loose, resulting in loose
318
seam.
2. Loose tension on edge or
226
raised stitching resulting in
loosely exposed bobbin thread
or top thread.
3. Tight tension (stitches
227
break when normal strain is
applied to seam or stitching).
NOTE:
Puckering is evidence of tight tension. When puckering
is evident, the inspector shall test seam by exerting
normal pull in the lengthwise direction of seam on
stitching.
g. Stitches per inch less than
minimum:
- one or two stitches.
319
- three stitches.
228
- four or more.
116
NOTE:
To be scored when condition exists on major portion of
seam.
h. Stitches skipped or broken.
1. More than 1/4 inch but
320
not more than 3/4 inch.
2. More than 3/4 inch.
229
Shaded parts
a. Any outside part shaded.
321
20
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