Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SRM 2083 found under Gage Disk Master Se by National Bureau Of Standards. The National Stock Number assigned to this part is 5220012308577, and the Federal Supply Class is 5220 Inspection Gages And Precision Layout Tools. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like SRM 2083.