Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 6012221-001 found under Filter Low Pass by Bae Systems Information And Electronic Systems Integration Inc Div Bae Systems. The National Stock Number assigned to this part is 5915015057757, and the Federal Supply Class is 5915 Filters And Networks. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 6012221-001.