Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 525 138-0001 found under Rack Electrical Equ by Sypris Electronics Llc. The National Stock Number assigned to this part is 5975013392478, 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 525 138-0001.