Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 532B-101 found under Gage Comparator Ele by Mahr Federal Inc. The National Stock Number assigned to this part is 5220013600393, 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 532B-101.