The hex nut attaches to the drive case cover. This part is made of metal and is sold individually even though many nuts may be needed during installation. This part may become stripped or lost and will need to be replaced. A wrench will be needed when replacing this part. It is an authentic OEM sourced item which is specially designed for use with Homelite and Ryobi chainsaws.
It is a genuine manufacturer-supplied replacement part that is specially made for use with Homelite handheld lawn and garden equipment. This gasket is secured in the fuel cap to provide and air-tight seal. Over time the material may begin to deteriorate and crack eventually requiring replacement. It is made of high-quality composite material and it is sold individually.