Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B99-004 found under Cock Plug by Zodiac Intertechnique Fuel. The National Stock Number assigned to this part is 1680143709261, 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 B99-004.