As anyone working with Military Specifications knows, deciphering the alphabet soup that is the material designation can be frustrating.
The Military specification for Galvanized and Stainless Steel Aircraft cable, Mil-DTL-83420M, is no exception. The cables are designated by size, type, and composition, and further segmented on the MIL-DTL-83420M Qualified Producers List by what is affectionately know as the "Slash and Dash": a series of numbers meant to facilitate ordering of material based on the aforementioned size, type, and composition.
For example, you may receive an inquiry for Type 2 Composition B 3/32"-1/8" 7x7 Aircraft Cable. Or a customer may just ask you for M83420/4-013. How do you know what they need?
First, You can alway consult the Military Specification pageon our website. It contains a complete listing of all applicable military specification pertaining to aircraft cables, as well as down-loadable versions of publicly available military specifications.
And finally, if you feel the need to tackle this alone, here is an explanation of the basic details for specifying Military Specification Galvanized and Stainless Steel Aircraft cable:
There are two compositions of steel specified in MIL-DTL-83420
Composition A: Galvanized Steel
Composition B: Corrosion resistant (Stainless type 302/304) Steel
There are two types of material specified in MIL-DTL-83420M
Type I: Bare Cable
Type II: Jacketed Cable
So, your customer is asking for: Type 2 (jacketed) Composition B (Stainless Steel) 3/32"-1/8" 7x7 Aircraft Cable, or Loosco Part# SF0947701
"Slash and Dash"
How about the M83420/4-013?
This one's easy, provided you have understand the type and composition above, and have access to the MIL-DTL-83420M Qualified Producers List:
M83420: Military Specification Mil-DTL-83420M
/4: Type II, Composition B
-013: 3/32"-1/8" 7x7
Easy enough. right?