Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 6891373 found under Gage Disk Master Setting by Allison Transmission Holdings Inc. The National Stock Number assigned to this part is 5220006131775, 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 6891373.