Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 99K11 2TN LINE 19 found under Retainer Packing by Pentair Pump Group Inc. The National Stock Number assigned to this part is 5330011863362, 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 99K11 2TN LINE 19.