Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number FF 1025 B found under Filter Element Air Conditioning by Universal Air Filter Company. The National Stock Number assigned to this part is 4130014000725, 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 FF 1025 B.