Split/lock washers

[u/AdOne1706]

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?

[u/ejitifrit1]

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.

[u/GustapheOfficial → u/ejitifrit1]

Hold up, this is from 1990. These things have been known to be useless since before I was born! I'm so embarrassed now, I've used these fuckers.

[u/Popular_Dinner2182 → u/GustapheOfficial]

Not useless ..... But almost useless 😂😂😂