Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 435 1-4 found under Rubber Sheet Solid by Anchor Packing Co The. The National Stock Number assigned to this part is 9320000589132, 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 435 1-4.