Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number CO 401A 2X AT 2 4576MHZ found under Oscillator Crystal by Vectron International Inc. The National Stock Number assigned to this part is 5963015159175, 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 CO 401A 2X AT 2 4576MHZ.