Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 6531-UMK found under Cabinet Electrical Equipment by Kontron America Incorporated. The National Stock Number assigned to this part is 5975014209114, 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 6531-UMK.