Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 32-15404-305 found under Duct Assembly Bleed Air by Associated Aircraft Supply Co. The National Stock Number assigned to this part is 1560000658889, and the Federal Supply Class is 1560 Airframe Structural Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 32-15404-305.