Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3131-1222-003 found under Screw Special by Bae Systems Operations Limited Dba Bae Systems Plc. The National Stock Number assigned to this part is 5305001017938, and the Federal Supply Class is 5305 Screws. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 3131-1222-003.