U. Eight of the conductors are equivalent to 20 AWG, four of which are shielded, and two of the conductors are equivalent to 16 AWG, one of which is shielded.

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MIL-DTL-2486E

3.11 Jacket. The jacket shall be of a jacketing compound type as specified in MIL-DTL-3432. The

jacket shall be applied over the separator to an outside diameter of 0.615 � 0.015 inch (15.62 mm �.38

mm). The wall thickness of the jacket shall be not less than 0.030 inch (.76 mm). The outer jacket shall

be uniformly smooth and shall have no ridges, pits, depressions, embossed or engraved markings, or any

other irregularities which would impair the smoothness of the jacket.

3.12 DC resistance. When tested as specified in 4.5.7, each conductor shall have a DC resistance

corresponding to its size at, or corrected to, 25C, as follows:

DC resistance, maximum

ohms per 1,000 feet

Conductor size (AWG)

12.1

4.7

3.13 Dielectric strength. The insulated conductor shall withstand for 1 minute without breakdown an

alternating current potential of 1,000 volts root-mean-square (rms.), when tested as specified in 4.5.8.

3.14 Insulation resistance. Immediately after the insulated conductors have withstood the dielectric

strength test, the insulation resistance shall be measured as specified in 4.5.9. The insulation resistance

of Buna S insulated conductors shall be not less than 500 megohms � 1000 feet when measured at or

corrected to 15.6C. The insulation resistance of latex insulated conductors shall be not less than 7,500

megohms � 1,000 feet when measured at or corrected to 15.6C.

3.15 Cold bend. The insulation and the jacket shall not crack when tested as specified in 4.5.13 at a

temperature of minus 40C  2C.

3.16 Marking of cable. The cable shall be marked on the outside with an inked marking and on the

inside under the overall shield with a marker tape. All letters and numbers in the marking shall be of the

same height.

3.16.1 Inked marking. Inked marking shall be clear and legible. The marking shall show no

indication of cracking when bent as specified in 3.15. The inked marking shall consist of the designation

WM-46/U, and the number of this specification with three to five letter spaces allowed between them.

The marking shall be repeated at intervals along the cable not to exceed one foot.

3.16.2 Marker tape. The marker tape shall consist of a thin synthetic tape as specified in MIL-I-631

or flat woven tape of cotton or synthetic yarn. The designation of WM-46/U, the number of this

specification, the year of manufacture, and the manufacturer's name or trademark, shall be permanently

printed in succession on the tape. Serial number indicating footage may be supplied at the option of the

manufacturer. Spacing between cable designation, number of specification, etc., shall be three letters in

width. The marking shall be repeated at intervals along the tape not exceeding one foot. The tape shall

be applied longitudinally.

3.17 Workmanship. All cables shall be manufactured and finished in a thoroughly workmanlike

manner specified in with 3.3 through 3.11, and 3.16 through 3.16.2, inclusive.

4. VERIFICATION

4.1 Classification of inspections. The inspection requirements specified herein are classified as

follows:

Conformance inspection (see 4.4).