Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 7B27007 found under Oscillator Noncrystal Controlled by Rockwell Collins Inc. The National Stock Number assigned to this part is 5963015243706, and the Federal Supply Class is 5963 Electronic Modules. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 7B27007.