Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 243 48781 found under Nut In Flight Fuel by Hi Shear Corporation. The National Stock Number assigned to this part is 1680005342313, 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 243 48781.