Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 649A922-137 found under Setscrew by Curtiss Wright Electro Mechanical Corporation Div Steam And Air Solutions. The National Stock Number assigned to this part is 5305013973458, 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 649A922-137.