Metal finishing Q&As since 1989
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What is MIL-STD-171 5.3.1.2 or 5.3.2.2
Q. I do the purchasing and quoting for a small job shop and am trying to find out what 5.3.1.2. or 5.3.2.2 of is. I would greatly appreciate any help.
Greg T [last name deleted for privacy by Editor]Job Shop - Houston, Texas
2004
A. Greg, you can find Military Specifications on the web pretty easily- currently http://assist.daps.dla.mil/quicksearch/ works, but if the DoD changes it just type in "Military Specification" in Google, and you'll get there. Anyway, in Revision E, paragraph 5.3.1.2 deals with Chemical Agent Resistant Coatings (CARC), and there is no 5.3.2.2. Perhaps your request refers to an earlier revision of Mil-Std-171.
Lee Gearhart
metallurgist - E. Aurora, New York
2004
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Ed. note: The Assist site has moved many times over the years, so we are now using active macros to link directly to the specs in question, as below ...
A. E concerns Phosphate finishes for iron & low alloy steels.
5.3.1.2. is Phosphate Type M per DOD-P-16232 [ed. note: replaced by MIL-DTL-16232 [from DLA] ].
Class 2, is with a supplementary treatment with lubricating oil conforming to MIL-L-3150 [ed. note: superceded by MIL-PRF-3150 [from DLA]], and 5.3.2.2. is Phosphate Type Z per DOD-P-16232 Class 2 with preservative conforming to MIL-PRF-16173 [on DLA, grade 3 or MIL-L-3150 (as alternate for very small parts) Hope this helps.
Marie M [last name deleted for privacy by Editor]- Santa Fe Springs, California, USA
2004
A. Marie M's answer is the correct one! Mil STD 171 is the standard for industry to coat bare metals to a certain specification for the Department of Defense. MIL-STD-193 is the standard for CARC.
US ARMY RESEARCH AND DEVELOPMENT LAB - Picatinny Arsenal New Jersey
April 3, 2008
A. 5.3.1.1, 5.3.1.2 and 5.3.1.3 are all heavy manganese phosphate coating designations found in MIL-STD-171
- Marion, Iowa, USA
July 27, 2010
A. Sorry, I was lost as Lee was, because this spec has a section 5.3.1.2, but that's not not what you are talking about . . . you are talking about finish number 5.3.1.2 and 5.3.1.3, from Table V
Although phosphated parts that are not oiled usually get painted, I don't see this specification demanding that they be painted.
Regards,
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
November 3, 2010
Q. I am working on a dwg. and need help, it calls out the following spec, I will type exactly as I see it called out.
Protective Finish:
Finish 3.3.1.3 OR 5.3.2.3
Plus 30.7 TYPE 111 OF MIL-STD-171, .0002-.0003 THICK
CAN YOU PLEASE HELP?
Thank you,
- Appleton, Wisconsin
2007
Q. WHAT IS THE DIFFERENCE IN THE 2 VS 3 IN 5.3.1.2 MIL-STD-171 AND 5.3.1.3
Thinking difference is .2 for oiling parts and .3 for not oiled parts to be painted?
- Bloomington, Minnesota, USA
November 2, 2010
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