Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 40 000 1621 found under Stud Recessed by Dw Hercules Llc. The National Stock Number assigned to this part is 5307006231814, and the Federal Supply Class is 5307 Studs. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 40 000 1621.