MIL-DTL-44105C
TABLE IV Assembly and configuration requirements
b. When the top and bottom sides are joined using the alternate construction (mock seam) provided in
Table VI it shall be uniform in width and without distortion.
c. The side piece shall interface with the folder as specified in the applicable pattern.
d. The mock seam outside folded edge shall face the top of the crown for the basic and alternative
methods.
e. For Types III and IV only webbing shall be bartacked around the circumference of the hat with one
bartack located at the center front, and the webbing shall be centered on the bottom side piece.
Bartacks shall not extend off edges of webbing. The webbing shall be attached to the side piece with
fullness between bartacks forming loops. Bartacks shall extend widthwise across the webbing.
f. The ends of the webbing for Types III and IV shall be caught in the center back seam of the top and
bottom sides.
g. Instruction labels shall be stitched on four sides to the inside side lining on the left side of the hat.
Stitching shall not pass over printing.
SIDES TO CROWN SEAMS
a. The top side piece shall finish on top of the crown and shall be free of twists, puckers, pleats or raw
edges.
b. Front notches shall match and the back seam shall be in line with the back notch on the crown.
c. Stitching of side lining to inside of crown shall not show on the outside. Stitching of top side to
outside of crown shall not show on the inside of the hat.
SIDES TO BRIM
a. Chin strap ends shall be tacked to the underside of the brim at each side notch.
b. Side piece and brim front notches shall match, and the back seam shall line up with the brim back
notch. Joining seam for bottom side piece and top of brim shall not be stitched through interlining.
The bottom side piece shall be turned up and edge stitched.
c. Headband stay piece shall be positioned to inside of side lining with bottom edge of stay piece ½
inch from bottom edge of lining and even with back seam of lining. Bottom edge of side lining shall be
turned up over bottom edge of stay piece before joining lining to bottom brim, catching bottom edge of
size label in the stitching.
d. Size label shall extend upward into the crown and be positioned to the right side of the center back
seam.
e. The finished hat lining shall not be full, twisted or extend below the brim.
FINISHING
a. All loose threads, spots, stains, markings shall be removed and all thread ends trimmed.
b. As an option for forming the hat, the following blocking procedure may be utilized: Block crown
on proper sized heated blocks and flange brims with metal dies on hydraulic press with heat and
pressure to properly set brims.
c. Ventilators shall be attached in pre-punched holes through side and lining, as indicated by marks on
pattern, with washers on inside of hat.
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