Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 18E1787-1 found under Pipe Exhaust by Fleet Readiness Center East Div Department Of Navy. The National Stock Number assigned to this part is 2990015042814, 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 18E1787-1.