Lock nuts.

[SouthernGT40]

Does anyone know the correct fitting of lock nuts the type with the plastic ring at the top? Its my understanding that two threads should be showing through the top of the nut, at least for aviation use, not sure about SVA requirements.

Martin.

 

[Ron Earp]

Nylock nuts. McMaster-Carr and many other sources.

http://www.mcmaster.com/#nylock-nuts/=2167va

 

[Brett James-McCall]

Martin,
I think I remember from SVA that it was at least 1 thread. I have the old book, so I will check.

Brett