Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 2550173 found under Gage Fixture Set by Honeywell Aerospace. The National Stock Number assigned to this part is 5220009450585, 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 2550173.