MIL-C Wire (M Cable) MIL Spec Wire NEMA WC The M Cable specification is commonly used to describe both shielded and. “L” designates optional identification method D (see mil spec for band marking Number of Conductors (5): M currently specifies from 1 to 15 conductors. OD (in.) Max. Weight. (lbs/ ft.) Min. Max. Nom. Max. MSD1T 1. MSD1T 1.

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High performance | High temp mil spec wire / commercial wire & cable | Harbour Industries | M

Posted on October 9, By wiremasters. Commonly used in avionics, aerospace, military, and airframe applications, these constructions are offered in shielded and unshielded cables and are composed of specific conductor sizes, insulation types, number of conductors, shielding material and jacket compounds. Ranging from 1 to 15 conductors, the part number is a combination of digits and letters not to exceed 16 which help identify the exact components of sec cable.

This particular cable is one of the only products that you can determine the construction and components just by evaluating the part number. Identifying the Specification — Every part number will begin with M because this is the specification call out.

NEMA WC27500 – Mil-DTL-27500

Color Code — The identification method is designated by a single character that denotes the color coding, identification sequence, and the amount of shield coverage. Conductor Size — The basic wire size of the inner conductors will be identified.


In this particular part number, the cable is composed of 20 gauge inners. Cable Designators Basic Wire specifications — A one or two letter symbol will be used to designate the specification, type, and class of the inner conductors. Number of Conductors Per Cable- This number defines how many inner conductors the cable will include. Depending on your shield and gauge sizes, the cables will have 1 to 15 conductors.

Shield style and material — The shield style and material of the overall shields will be designated by a single letter. Jacket material and temperature rating- The type of jacket is determined by a two digit number at the end of the product call out.

Depending on the call out, the cable can be a single or double jacket.

Single jacketed cables only have an outer jacket, but when double jacketed there is a jacket between a double shield and a jacket covering the outer shield. Breaking down part numbers can help you gain knowledge and understanding about the products you are purchasing and using daily.

WireMasters is here to make your job easier! By using our reference sheets, you can reassure yourself on selecting the appropriate cable that best fits your application.


By evaluating the M part, we can look at all the cables characteristics without visually seeing the product. Below is a downloadable PDF chart to help you break wpec the M specification.

M Specification Anatomy | MIL-DTL Cable

WireMasters carries a variety of these cables in stock. We are also on the QPL, which allows us to build U00 cables in-house!

Holding large stock quantities of these cables, we can ship your cable out the door the same day you place your order. Click here for more information or email us at wminfo wiremasters. You are commenting using your WordPress. You are commenting using your Twitter account.

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