Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number RRB120TYPE2CLASS2-4 1-4QT found under Basin Wash by Federal Specifications. The National Stock Number assigned to this part is 7240007710945, 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 RRB120TYPE2CLASS2-4 1-4QT.