Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B20001 found under Lock Cover Screw by Curtis Straus Llc. The National Stock Number assigned to this part is 1680001675727, and the Federal Supply Class is 1680 Miscellaneous Aircraft Accessories And Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like B20001.