mysterious white macbook part

[jiawe]

On disassembly of my macbook mid 2007 a funny little white part fell out.

I searched the whole internet to no avail..
Who can help me, where does this fellow belong?
,
It has a circle with the following stated: "n2-5"

Thank you for any help.

 

[g4manimac]

It goes around the hinge on the display assembly I wanna say in the lower case on the bottom side where the 3 screws go to screw the hinge onto the lower case if not somewhere on the display hinge just can't remember exactly where I have a lot of those models and I got a ton of those laying around (I never put them back in )

 

[iDutchman]

This is indeed a part that attaches to the right hinge of the screen.
It attaches on the lower casing by just sliding in on the hinge.

See the following photo where I point out the specific part:

 

[Altemose]

To reinstall the part just remove the top case. Shouldn't be too hard at all to do again.