Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 2121 2541-376 found under Screw Cap Socket He by Bae Systems Hagglunds Ab. The National Stock Number assigned to this part is 5305123159267, 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 2121 2541-376.