Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BA90279 found under Ring Externally Thr by Lucent Technologies Inc. The National Stock Number assigned to this part is 5365007598459, 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 BA90279.