Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1W2135 ITEM 10 found under Gasket by Caterpillar Inc. The National Stock Number assigned to this part is 5330012073036, 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 1W2135 ITEM 10.