Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 57 03 2CAP found under Heat Sink Electrical Electronic Component by Thermalloy Co Inc. The National Stock Number assigned to this part is 5999013814165, and the Federal Supply Class is 5999 Miscellaneous Electrical And Electronic Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 57 03 2CAP.