Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number R1C 1963F found under Rubber Sheet Solid by Rubbercraft Corporation Of. The National Stock Number assigned to this part is 9320004122298, and the Federal Supply Class is 9320 Rubber Fabricated Materials. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like R1C 1963F.