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Questions about military finishing spec. MIL-STD-171?





November 6, 2008

Q. I'm trying to find out what 1.1.2.3 or 1.9.2.3 of MIL-STD-171 is?

Marvin Elliott
Cost estimator - Pompano, Florida



November 12, 2008

A. Go to the assist quicksearch website at http://assist.daps.dla.mil/quicksearch/

You should find the spec there. I think the latest revision is revision E.

Brian Terry
Aerospace - Yeovil, Somerset, UK


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Ed. note: That site seems to move every year or two. Current location as of Feb. 2017 is https://quicksearch.dla.mil/, and current version is F.


November 13, 2008

A. TABLE II. Inorganic finishes, metallic coatings.
+
1.1 Cadmium coatings
1.1.2 Plating, w-P-416, type II, with supplementary chromate treatment; normal color: not bleached or clear (see 5.1.3.3)
1.1.2.3 Class 3, 0.0002 inch (5.1 um) thick
1.9 Zinc coatings

1.9.2 Electrodeposited zinc, ASTM B633 [affil. link] , type II with supplementary chromate treatment; normal color: not bleached or clear (see 5.1.3.3)

1.9.2.3 Class 3, 0.0002 inch (5.1 um) thick

Chris Jurey, Past-President IHAA
Luke Engineering & Mfg. Co. Inc.
supporting advertiser
Wadsworth, Ohio
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January 26, 2012

Q. Good morning ,

I wonder if anyone knows what protective finish 7.3.1 of MIL-STD-171 [affil. link or from DLA]?
Materials are alum. alloy 5052 H32 .090 thk.
Thanks for your advise in advance!

Rebecca Randazzo
Owner and operator - Kingston, New York, USA



January 26, 2012

Hi, Rebecca.

I'm not sure that I understood the question, but Finish No. 7.3.1 is "Chemical film, chromate, MIL-DTL-5541 [affil. link or DLA] or ASTM B449 [affil. link]
Type II, Class 1A, for maximum protection against corrosion, painted or unpainted".

Regards,

Ted Mooney, finishing.com
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey


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