Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BK202381 found under by Ambac International Corporation. The National Stock Number assigned to this part is 2990000846913, 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 BK202381.