Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 26249-6172REVC found under Shell Muffler by San Antonio Air Logistics Center. The National Stock Number assigned to this part is 2990008670277, and the Federal Supply Class is 2990 Miscellaneous Engine Accessories Nonaircraft. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 26249-6172REVC.