Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number TBR01-12-06M1 found under Case Test Set by Ta Instrument Case Co. The National Stock Number assigned to this part is 4920001645879, 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 TBR01-12-06M1.