Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 145E4019-77 found under Insulation Acoustical Aircraft by Airborn Inc. The National Stock Number assigned to this part is 1560015030807, 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 145E4019-77.