Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 99D5D-CF ITEM 502D found under Ring Externally Thr by Pentair Pump Group Inc. The National Stock Number assigned to this part is 5365011122298, and the Federal Supply Class is 5365 Bushings Rings Shims And Spacers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 99D5D-CF ITEM 502D.