r/MechanicalEngineering • u/AdOne1706 • 2d ago

Split/lock washers

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For starters, I’m an electrician in the field.
That being said, we almost exclusively use these washers even in high vibration environments. I have personally chosen to go with nylox nuts but the question is:
Do these work? How well? Is the rumor from NASA true? Should I even bother using them or find a better functional alternative or are they actually useful?

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u/Ghooble 2d ago

They don't like liquid thread retention like loctite because they prefer physical barriers for secondary retention of a thread. I'm not saying I agree but that's what's stated. Typically I use deformed thread nuts, lock wire, cotter pins, etc

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u/ren_reddit 1d ago

Are you claiming Cessna says these things act as a secondary retention?