A-A-55242A
3.1 Widths. The webbing shall be of the widths specified in Table I.
3.2 Weave
3.2.1 Type I. The weave shall be a two up, two down twill with one reversal at the center of
the webbing.
3.2.2 Types II, III, IV and V (shuttle webbing). The weave shall be as shown in Figure 1
with one reversal at the center of the webbing. The weave shall be plain weave for the
shuttleless webbing and shall have a catchcord using 500 denier polyester yarn.
3.2.3 Type VI. The webbing shall be woven in a three-ply (face, middle and back) plain
weave with binders weaving three up and three down. The binders pull one face, one middle,
and one back pick together. Warp ends weave two ends as one, binder and selvage ends
weave single. The selvages shall have eight ends on one edge and nine ends on the other. A
cross section of the weave is shown in Figure 2.
3.3 Finish
3.3.1 Class 1, untreated. When class 1 is specified, the webbing shall be untreated.
3.3.2 Class 2, latex treatment. When class 2 is specified, the webbing shall be impregnated
with a natural rubber latex containing the necessary curatives and antioxidants. The webbing
shall be saturated by total immersion in the latex bath for a period of time sufficient to allow
penetration to the core of the webbing and the excess then removed to permit conformance to
the finished weight requirement. The webbing shall be dried and vulcanized.
3.4 Physical requirements. The finished webbing shall conform to the requirements in
Table I when tested as specified under end item performance testing and Table IV.
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