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Re: NASA: Split Lock Washers Are "Useless"!

 

Microdyne bought most of our hardware from Accurate Screw Machine. We used internal toothed lock washers in our products, except for a couple connectors that came with custom hardware. Those received a drop of breakable Loctite. This was issued with the expiration date clearly marked, so I got a lot of partial bottles for my own use to keep it out of the toxic waste stream.They were pulled from the production floor within a month of the expiration date, along with worn solder sponges and anything else that was questionable. We tested the calibration on the soldering irons and the conductivity of antistatic mats? every 90 days, as well.

On Sat, Dec 31, 2022 at 5:30 PM Jim Allyn - N7JA <jim@...> wrote:
On Thu, Dec 29, 2022 at 08:17 PM, Jeff Green wrote:
Guys I didn't mean to start the flame war of the 21st century
Generally speaking, nobody ever does mean to start a flame war, but they start anyway.? They seem to be unpredictable.? I appreciate the information you posted, and I'm sure others here do as well.? If some want to argue about it, not much to be done about that.? Somebody once told me the most useful skill one can learn is to shrug one's shoulders, perhaps mutter "oh well" under one's breath, and move on.? I haven't mastered the skill yet, but those few times I have managed to do it, it does seem to be a very useful skill.? On NASA's advice, I will rethink my past usage of split washers.

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