Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B4924 found under Ring Barrel by 0Mcc Inc. The National Stock Number assigned to this part is 5365003858893, 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 B4924.