Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number Y20000167 found under Gage Ring Master Se by Detroit Diesel Corporation. The National Stock Number assigned to this part is 5220123337087, 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 Y20000167.