Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number S1188-11 found under Seal Plain Encased by Flowserve Corporation. The National Stock Number assigned to this part is 5330013811770, 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 S1188-11.