Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number A058706 found under Seal Plain Encased by Sasco Inc Canadian Div. The National Stock Number assigned to this part is 5330001783773, and the Federal Supply Class is 5330 Packing And Gasket Materials. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like A058706.