Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number DT-1500 found under Filter Media Air Conditioning by Air Filters Inc. The National Stock Number assigned to this part is 4130003943546, 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 DT-1500.