Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 5973 found under Rack Inventory Ultra Low Tempera by Gs Laboratory Equipment Inc. The National Stock Number assigned to this part is 4110014607485, 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 5973.