This sale is for one NOS OEM genuine Homelite A-56580-1 slotted cap and gasket (screwdriver slot version), without retainer strap.
It is a new old stock part sold in the worn oem package. 

Condition: New, never installed.

Fits: Selected versions of 9-26, 600D, 600D-A, 700G, 707G, 770D, 770G, 775D, 775G, 900G, 909G, 990G, 995G, C-51G, C-52, C-71G, C-91G, XP-1000, XP-1100, Zip (1958), Zip (1959), Zip-A, Zip-B and possibly other versions missed.

Returns Note: --No Return-- I would request that if you made an order mistake; do the right thing and don't give me bad feedback for your incorrect choice.