MIL-DTL-43455K
Bartacking. Unless otherwise specified, bartacks shall be as follows:
3.6.2
Tolerance
Stitches per
Width
Length
Width
bartack
Length
1/2 inch
1/8 inch
+ 1/16 inch
+ 1/32 inch
28
1 inch
1/8 inch
+ 1/16 inch
+ 1/32 inch
42
Bartacking shall be free from thread breaks and loose or tight stitching.
3.6.3
Buttonholes. The buttonholes shall be the eyelet-end taper bar type, worked over gimp
(see 3.3.10.2) with not less than four stitches at bar end (not counting the crossover stitch). The buttonholes
shall finish with the purling on the outside of the coat. The finished cut lengths shall be 3/4 to 7/8 inch.
The buttonholes shall be clean cut with the stitching securely caught in the fabric. Additive treatments or
materials used to secure the ends of the stitching or to stiffen the fabric prior to stitching the buttonholes are
prohibited.
3.7 Manufacturing operations requirements. The coat shall be manufactured in accordance
with operations specified in Table II. The contractor is not required to follow the exact sequence of
operations. Any additional basting or holding stitching to facilitate manufacture is permissible, provided
the thread is removed or does not show in the finished coat.
3.7.1 Use of automated apparel equipment. Automated apparel equipment may be used to perform any
of the operations specified in Table II, providing that the seam and stitch type are as specified and the
finished component conforms to the required configuration. When a government furnished shaper pattern
is forwarded, the component shall conform to that pattern.
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