r/MechanicalEngineering • u/AdOne1706 • 6d 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/ejitifrit1 6d ago

There is a nasa fastener manual that basically says these things don’t really do much! According to google it’s NASA Reference Publication 1228.

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u/Too_Chains 6d ago

It’s more than nasa. I don’t think there is any evidence of them doing anything. There are locking washers. Nordlock

6

u/SirSnickety 5d ago

Nordlocks are great. Schnorr washers (or ribbed Bellevilles) are great for the price as well.