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FED. SUP CLASS 3120/MS14238 finish codes

August 21, 2012

Q. I'm trying to find the finish codes for the different materials listed in the FED. SUP CLASS 3120/MS14238 specification, particularly the finish code represented by the letter E. The bushings we are using need to be machined from 17-4 PH stainless steel so I'm guessing that the "E" finish stands for passivation but I can't find anything that states this in the specification.

Curtis Wilhelm
Technical Representative - Lincoln, Nebraska, USA

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