MIL-DTL-3849C
3. REQUIREMENTS
3.1 Specification sheets. The individual item requirements shall be as specified herein and in
accordance with the applicable specification sheet. In the event of any conflict between the requirements
of this specification and the specification sheet, the latter shall govern.
3.2 Qualification. Cables furnished under this specification shall be products that are authorized by
the qualifying activity for listing on the applicable qualified products list before contract award (see 4.3 and
6.3).
3.3 Materials. Materials shall be as specified herein see 4.4. When a material is not specified, the
best material commercially available for the purpose shall be used. Substitute materials may be used
only upon prior approval by the qualifying activity. However, such approval shall not be construed as a
guaranty of acceptance of the finished product.
3.3.1 Recycled, recovered, or environmentally preferable materials. Recycled, recovered, or
environmentally preferable materials should be used to the maximum extent possible provided that the
material meets or exceeds the operational and maintenance requirements, and promotes economically
advantageous life cycle costs.
3.3.2 Tinsel wire. All uninsulated tinsel wire shall be in accordance with MIL-W-3795, type I, II, or V,
as specified on the applicable specification sheet (see 3.1).
3.3.3 Fibers and yarns. All synthetic fibers and yarns employed as separators, fillers, binders,
staycords, and braids shall be as specified herein.
3.3.3.1 Separator. Each tinsel conductor, prior to insulating, shall be closely covered with a
separator yarn. The yarn shall be in accordance with MIL-C-572 and shall be of the following types:
a. Polyester, type PSTR
b. Cellulose acetate, type AR
c. Polyamide, type P
NOTE: Vegetable and sulfonated oils shall not be applied as a lubricant to the textile yarns used in or
in contact with the tinsel conductors.
3.3.3.2 Fillers and binders. Fillers shall be used between insulated conductors to form an essentially
circular cross-section core and to provide slippage between the insulated conductors. Binders shall be
applied over the cabled tinsel wire conductors as specified on the applicable specification sheets (see
3.1). Filler and binder yarn shall be either polypropylene yarn or one of the following yarns in accordance
with MIL-C-572; polyamide type P, or polyester type PSTR.
3.3.3.3 Staycords. Each staycords shall consist of ply yarn, one or more braids, or yarn covered by
braid. Each staycord shall meet the requirements of 3.7.1.1. The yarn shall be in accordance with
MIL-C-572 and shall be one of the following types:
a. Polyamide, type P.
b. Cellulose acetate, type AR.
c. Cellulose triacetate, type CTA.
3.3.3.4 Outer braid. The outer braid shall be fabricated from polyamide in accordance with
MIL-C-572 type P. The color of the braid shall be as specified in the applicable specification sheet (see
3.1).
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