Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 484B873 found under Gage Contact Electr by Treadwell Corporation. The National Stock Number assigned to this part is 5220012265798, 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 484B873.