Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 351939-7 found under Blanket Duct Insula by Tighitco Inc. The National Stock Number assigned to this part is 1560005910330, 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 351939-7.