Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 2C0173SH-4SU found under Compressor Refrigeration by Cospolich Inc. The National Stock Number assigned to this part is 4130015390272, and the Federal Supply Class is 4130 Refrigeration And Air Conditioning Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 2C0173SH-4SU.