Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SL4448PC188 found under Seal Plain Encased by Curtiss Wright Corp. The National Stock Number assigned to this part is 5330001542385, 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 SL4448PC188.