Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 40052-19 found under Blanket Assembly Th by Arrowhead Products Corporation. The National Stock Number assigned to this part is 2990007308403, and the Federal Supply Class is 2990 Miscellaneous Engine Accessories Nonaircraft. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 40052-19.