Stator cover gasket question

[Username01]

I need some help find the gasket that goes in between the magneto/stator cover and the engine housing on a 787, could someone give me a part #? Is it a gasket or big oring?.

 

[ace422]

Its an oring, the # should be 290950360

 

[wfo speedracer]

There is a gasket and an o-ring. the gasket goes between the housing and the engine, the o-ring goes in the channel in the magneto cover, part number on the gasket is 290-931-470, WSM part number is 007-586 , SBT part number is 41-107-06