Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MP3 2011 found under Protector Thermal O by Hartford Compressors Inc. The National Stock Number assigned to this part is 6110014498220, and the Federal Supply Class is 6110 Electrical Control Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like MP3 2011.