Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 803-1385789G 1.5IN PC 5 found under Baffle by National Brass Company Inc. The National Stock Number assigned to this part is 4510016094307, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 803-1385789G 1.5IN PC 5.