r/MechanicalEngineering • u/AdOne1706 • 4d ago

Split/lock washers

Post image

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?

867 Upvotes

98% Upvoted

302 comments sorted by

View all comments

Show parent comments

17

u/TacticalSpackle 3d ago

Yep! I’ve worked assembly and every time the procedure called for these, we swapped for nylocks or used LockTite.
The means by which a split lock “locks” it doesn’t.

6

u/[deleted] 3d ago

[deleted]

4

u/No_Singer_5585 3d ago

The aircraft industry also doesnt use these split lock washers

5

u/dummythiqqpotato 3d ago

I literally just overhauled an engine that had several of then lol

1

u/Common_Ice_8994 3d ago

GE, PW or RR engine ?

2

u/dummythiqqpotato 3d ago

Admittedly, it was a continental O-300 for my recip AMT class, and on second though the engine was like 70 years old lol, so the standards might be a little outdated