Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B-100 GMA GCB found under Fractionator Gel by Gilson Inc. The National Stock Number assigned to this part is 6630010821118, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like B-100 GMA GCB.