Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number QQ-S-632 found under Steel Bar Reinforcing by Federal Specifications. The National Stock Number assigned to this part is 5680000616454, and the Federal Supply Class is 5680 Miscellaneous Construction Materials. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like QQ-S-632.