Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number N7 1 2SX5-8X1 3-8 found under Heat Interchanger Refrigerant by Dunham Bush Ltd. The National Stock Number assigned to this part is 4130011994947, 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 N7 1 2SX5-8X1 3-8.