Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number R501102-11 found under Ring Wiper by Omnipure Filter Co Inc. The National Stock Number assigned to this part is 5330000689636, 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 R501102-11.