Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 51-845142-009 found under Electronic Module S by C And D Technologies. The National Stock Number assigned to this part is 5963011282074, 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 51-845142-009.