Originally Posted by BBill
[QOTE=Bowdrie;3751183]In many areas the term "mil-spec" has no special meaning.
The military buys millions of things/items from "normal" civilian manufacture and they assign a # to the item.
Not all that much different from a civilian ordering a specific part number from a wholesaler/manufacturer.
I worked 23+ yrs in the semiconductor mfg industry for a company that made mil spec parts (aka High Rel) for the USA
military. Lots of "normal" vendors do mil spec but it isn't just a number added to a product. Mil Spec is basically about reliabilty, which ends up meaning the best engineering, best mfg, best quality control and best testing possible. Military Spec in the electronics
industry means the product is as good as technology allows...and non mil spec parts are technically not equal. The parts that don't meet mil spec testing are normally used in high end domestic products. Mil Spec bolts totally eliminate the risk of buying cheap
inferior parts. AN aircraft grade hardware
All you have to do is see a few mil-spec parts as compared to normal vendor parts and you can quickly see the different especially with electronics.
Mil-spec plugs for example are so well made as compared to "normal" plugs there's no comparison.
Circuit cards after they are built then have conformal coating applied for even greater protection.
What is MIL-I-46058C spec?
MIL-I-46058C, MILITARY SPECIFICATION: INSULATING COMPOUND, ELECTRICAL
(FOR COATING PRINTED CIRCUIT ASSEMBLIES) (07 JUL 1972) [NO S/S DOCUMENT]., This specification covers conformal coatings which are suitable for application to printed circuit assemblies by dipping, brushing, spraying, or vacuum deposition.
Those boards used to be a pain to work
on back when we use to troubleshoot to the component level then have to change the component which would include capacitors, diodes, resistors, transistors, transformers, chips, diode bridges, etc.
The USA's military budget
tells you a lot.
Even still the Mil-spec parts can be crazy expensive