Letter 39060

AMS, MIL-SPEC CONVERSION TABLES  

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I am hoping that someone can direct me to a publication, website, etc... that will show substitutions and or equivalent specs from Mil-Spec to AMS or vica versa. Any suggestions?

Thanks,

James Timoteo
machine company - Wichita, Kansas

You're treading on dangerous territory. While the title of the specifications might be comparable, the processes, requirements, test methodology, sampling plans, etc. are typically quite different. Just take EN for example: ASTM B733 [link is to spec at TechStreet] divides electroless nickel into 5 grades according to phosphorus content; AMS-2405 [link is to spec at TechStreet] differentiates electroless nickel it covers by using the term "LOW PHOS" in its title and states this as those EN's with 8% or less (this certainly isn't LOW PHOS EN as we know it today!); and the MIL spec makes no mention of phos content. Also, the MIL spec requires EN to have 100 hours of corrosion resistance while AMS2404 [link is to spec at TechStreet] only requires 48 hours. So is EN per Mil-C-26074 [link is to spec at TechStreet] or EN per AMS 2404 or EN per ASTM B 733 "equivalent" or "comparable" - NOT LIKELY!! I've turned your inquiry over to my Sales Engineer who will send you want you're looking for - we use an internal cheat sheet BUT we know the limitations! Tread carefully.

Milt Stevenson, Jr. Anoplate Corp Syracuse, NY, USA

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