Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number A51B52042-1 found under Fitting Leading Edge by Howe Machine And Tool Corp. The National Stock Number assigned to this part is 1560000036592, 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 A51B52042-1.