Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number CD-00553-1D7A found under Bleed Air Installat by Pall Aeropower Corporation. The National Stock Number assigned to this part is 1680013804879, and the Federal Supply Class is 1680 Miscellaneous Aircraft Accessories And Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like CD-00553-1D7A.