Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4001290 found under Screw Shoulder by H And E Venture Llc. The National Stock Number assigned to this part is 5305004219244, 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 4001290.