Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number RD-5-6319 found under Spacer Ring by Red Dot Corporation. The National Stock Number assigned to this part is 5365015752192, 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 RD-5-6319.