Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number R23-VBLK-TK found under V Block Tool Kit by Be Meyers And Co Inc. The National Stock Number assigned to this part is 1270015820221, 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 R23-VBLK-TK.