Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number TS-1491021 found under Screw Cap Hexagon Head by Wmh Walter Meier Holding Ag. The National Stock Number assigned to this part is 5305015655232, 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 TS-1491021.