Lock washers

[sonicss31]

Interesting and informative video for us gear heads.

 

[WYRD]

Very interesting. I've never heard of that type of locking nut.

 

[SHOCKtheMONKEY]

Man, I could have really used those on my Olds 455 exhaust manifolds 35 years ago...

 

[SixD9R]

You can find them here: https://www.mcmaster.com/products/nordlock/

I'm sure other places as well.

 

[Icky]

I remember the 316 ss ones being more expensive then that.

 

[Cray Paper]

Thank you for sharing! Reminds me of PT cable wedge anchors, except these can be loosened.

 

[rrrr]

Aircraft Spruce carries a good selection.

 

[Dan Lorenze]

Bad ass..

 

[Wolskis]

Another interesting washer setup is the Belleville which have been used on high pressure steam drum doors typically found in power plants for years.

They help to eliminate this type of steam leak. In this case it was the inside surface of the drum opening. The result was a steam cut, or gouging of the metal. 600psi IP drum. The repair is time consuming and costly.

Steam drums demand regular inspection, continual attention – Combined Cycle Journal

 

[Keymyster]

I wonder if they are a one time use?

 

[Romans9]

I wonder if they are a one time use?

No they are reusable.
I use them all the time on crushing equipment and hydraulic rock breakers. Both are some of the harshest environments to operate in.