Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 537-1000-022 found under Mounting Base Elect by Gap Instrument Corp. The National Stock Number assigned to this part is 5975013790242, and the Federal Supply Class is 5975 Electrical Hardware And Supplies. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 537-1000-022.