scope:

This specification covers unshielded wire for hookup and lead wiring of electrical and electronic components and equipment so that minimum size and weight are consistent with service requirements. The temperature rating of wire included in this specification ranges to a maximum of 260 degrees Celsius (°C), with potential rating from 250 to 5000 volts root mean square (Vrms).

Wire is of the following conductor material, size, stranding, and insulation color code, as specified (see 3.1 and 6.2).

Part numberbs shall be of the following form, as specified (see 6.2.1):

M16878/15 B C B ∗ (see 1.2.2) (see 1.2.3) (see 1.2.4) (see 1.2.5) (see 1.2.6)

The Military specification sheet number designation consists of a prefix M which indicates a military specification item, the specification number and the specification sheet number. Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commander, Naval Sea Systems Command, SEA 55Z3, Department of the Navy, Washington, DC 20362-5101 by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter.

Conductor material is as specified (see 3.1), with the conductor material designated by a single letter specified as follows:

B = Coated copper. C = Coated copper-clad steel (C.C. Steel). D = Coated high-strength copper alloy (H.S.C.A.). E = Coated copper with overall metallic coating.

The conductor's American Wire Gage (AWG) size is designated by a single letter specified as follows:

AWG Letter AWG Letter AWG Letter AWG Letter 32 A 20 G 8 N 00 W 30 B 18 H 6 P 000 Y 28 C 16 J 4 R 0000 Z 26 D 14 K 2 S 24 E 12 L 1 T 22 F 10 M 0 U

AWG for solid conductor is standard AWG; stranded wire is to the closest even-numbered AWG with normal stranding (7, 19, 37, and so forth) (see 6.1.2).

The number of strands making up the conductor is designated by a letter specified as follows:

Number of strands Letter Number of strands Letter 1 A 133 L 7 B 168 M 10 C 259 N 16 D 665 P 19 E 817 R 26 F 1045 S 37 G 1330 T 41 H 1672 V 65 J 2109 W 105 K

The insulation color code is in accordance with the identification coding system of MIL-STD-681, and may be 1, 2, or 3 digits depending on the number or absence of strips or bands. The first number is the color of the insulation, the second number represents the color of the first strip or band, the third number, the color of the second strip or band. Designation of the color code need not be imprinted on the wire. The colors and their corresponding number are as follows:

COLOR CODE CHART Number Number Color Designator Color Designator Black 0 Green 5 Brown 1 Blue 6 Red 2 Violet (purple) 7 Orange 3 Gray (slate) 8 Yellow 4 White 9

The colors listed are the preferred colors in accordance with FED-STD-595 unless the contracting activity specifies alternates (see 6.2).

This appendix establishes the minimum continuous wire lengths for polytetrafluorethylene (PTFE) wire constructions. The information contained herein is intended for compliance unless there is an alternative specified in 6.2.

intended Use: