Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number ERB451 found under Baffle Diaphragm by American Terra Vehicles Inc. The National Stock Number assigned to this part is 2990000178329, 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 ERB451.