MIL-DTL-83196C(USAF)
TABLE II. Sewing operations for underpants.
Stitches
Sequence
Description of Operation
Stitch
Seam and
Number
Type
Stitching
per Inch
Type
504
EFd-1
20-24
1
Overedge stitch underpants. Overedge stitch all raw edges
of the basic two parts of the underpants and the crotch
or
505
piece.
2
Join underpants.
a. Join the side darts.
606
FSa-1
12-14
b. Join the back seam.
606
FSa-1
12-14
c. Join the crotch piece to the right and left backs.
606
FSa-1
12-14
d. Join the facing to the right and left fly opening using
301
SSae-1
8-10
seam type SSae-1 on the top and front edges and seam
or
LSd-1
8-10
type LSd-1 on the back edges.
304
3
Install fly. Place the left fly over the right fly with the edge
301
SSv-1
8-10
of the left fly even with the inside row of stitching on the
or
right fly. Stitch the left fly to the right fly at the bottom area
304
with one row of stitching. The stitching shall start at the
point that the outer edge of the left fly is joined to the crotch
seam. The stitching shall continue on a diagonal line upward
across the left fly to the inside row of stitching on the fly at a
point approximately 1-1/2 inches from the crotch seam (see
figure 2).
4
Cut and attach waistband.
a. Cut the elastic webbing for the waistband the required
length. The length in inches for sizes 1, 2, 3, 4, 5, 6, 7,
and 8 shall be 22, 24, 26, 28, 30, 32, 34, and 36 (±1/4
inch), respectively.
b. Stitch the elastic webbing to the top of the underpants
606
FSa-1
12-14
along each end and across the bottom edge with the
or
elastic webbing overlapping the underpants 1/4 ± 1/8
607
inch. The elastic webbing shall be equally distributed
around the circumference of the underpants.
5
Install snap fasteners. Install the four snap fasteners, the
pronged rings in the left fly, and studs in the right (under)
fly. The top snap fastener shall be 3/4 inch from the top
edge. The second snap fastener shall be 2-1/4 inches from
the top edge. The bottom snap fastener shall be 3 inches
from the bottom of the fly. The third snap fastener shall be
equidistant from the top and the bottom snap fasteners.
6
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