MIL-DTL-29397B(MC)
3.3.12 Thread.
3.3.12.1.Silk thread. The silk thread shall conform to A-A-50196
as follows, except the requirements for extractable matter shall
not apply:
Use
Type
Ticket No.
Ply
Bartacks and all outside seaming
I
A
3
and stitching.
I
O
3
Machine felling.
I
B and F
3
Making buttonholes in jacket.
2
Hand felling; and hand sewing.
III
C
3.3.12.2.Cotton thread.
The cotton thread shall conform to
A-A-52094 as follows:
Use
Type
Ticket No.
Ply
All inside seaming and stitching.
III
A
3
Serging and overedge stitching.
I
70
2
Machine tacking armholes and
I
40
3
sewing on buttons.
The thread for basting shall be good commercial grade cotton. As
an alternate to the cotton thread, a polyester core, cotton or
polyester covered thread conforming to A-A-50199, ticket No. 50,
2-ply or ticket No. 70, 2-ply may be used.
3.3.12.3.Color and colorfastness. All thread shall be scarlet,
shade W, cable No. 66040 (see DoD Standard Color Card of Official
Standardized Shades for Sewing Threads 1968), except: the silk
thread for stitching collar, cuffs and braid, which shall be
black; the cotton thread for basting and machine tacking armhole,
which may be white; and the cotton thread for overedge stitching
the piping at the bottom edge of jacket shall be white. The
colored threads shall show the following colorfastness when
tested as specified in the applicable thread specification:
Color
Wet (dry) cleaning
Light
Thread
Cotton
Scarlet
Good
--
Silk
Scarlet
Fair
Fair
Silk
Black
Good
Good
6
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