plating, anodizing, & finishing Q&As since 1989
Is MIL-L-46010 dry film lube a Nutrient to Fungi?
I work for a small avionics manufacturing company and I am involved in qualification testing of a piece of military avionics. Specifically I am tasked to perform an analysis of the Resistance to Fungus (in lieu of testing per MIL-STD-810 method 508). As the first step I have assembled a multi-level bill of materials and I am attempting to determine the Resistance to fungus for each piece-part as the basis for making a statement about the entire piece of avionics.
The task was progressing nicely as most parts are either made of materials that are listed in group I of MIL-HDBK-454A table 4-1 as being a non-nutrient or they are encapsulated in a conformal coating that that is listed as a non-nutrient in table 4-1.
The problem arises when I get to a clinch-nut that is pressed into component of the chassis an as such isn't conformally coated. The component in question is procured under the specification NASM45938/7 (specifically M45938/7-2). The difficulty arises from the Dry Film Lubricant applied to these parts (MIL-L-46010/MIL-PRF-46010 [affil link or DLA] ). MIL-HDBK-454A list "lubricants" as being a fungus nutrient material.
Does anyone know where I can find a statement about the Fungus resistive properties of MIL-L-46010/MIL-PRF-46010 [affil link or DLA] or M45938/7-2? I have looked in every related military/AIA specification I can think of.
Thanks in advance for any help in resolving this situation,
electronics mfgr - Lynnwood, Washington, USA
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