Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number FE 231P found under Filter Element Air Conditioning by Fpz Inc. The National Stock Number assigned to this part is 4130015645288, 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 FE 231P.