Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SG2000S50 found under Ice Making Plant Block by Drs Environmental Systems Inc. The National Stock Number assigned to this part is 4110002439824, and the Federal Supply Class is 4110 Refrigeration Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like SG2000S50.