Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 50001500 found under Spacer Ring by Drs Training And Control Systems Llc. The National Stock Number assigned to this part is 5365010932387, 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 50001500.