Uuuuuh... Problem here!

[Lukc]

So I was just messing with my bass. I noticed that the nut on the entry of the jack was a little loose so I tried to fasten it a bit. Failed. Then the jack entry went inside the bass, I opened it up, and a little piece thing came out of the jack entry. I guessed it wasn't a problem, so I closed it and fixed it up. I connected it back in and it works fine, but was that piece important? It's still in there. Just not in the place it was before. It was like a ring with tiny little holes all around it.

[Arial Bender]

Just sounds like lockwasher.

[bassmeknik]

Probably a lock washer meant to be underneath the jack plate (between the jack and plate) to try and prevent loosening.

[bassbenj]

Originally Posted by bassmeknik

Probably a lock washer meant to be underneath the jack plate (between the jack and plate) to try and prevent loosening.

And if the lock washer has "teeth" it is meant to bite into the metal of the jack plate to make a better connection. It's always a bad sign when you have parts left over when repairing something!

But leaving it off isn't a biggie (jack may come loose again sooner than with it), but you do NOT want to leave it inside the bass!

Voice of experience says, it will rattle around in there and at the WORST possible moment it will wedge itself into the wiring shorting out the bass and causing it to quit playing.