Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 84001961-001 found under Gage Plug Thread by Woodward Hrt Inc. The National Stock Number assigned to this part is 5220013795771, 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 84001961-001.