Unique Item Identification (UID) Mil Std 130 is a globally unique “part identifier” that contains data elements such as Cage Code, Part Number Serial Number ect.. to identify and track parts, materials and existing items in the field throughout their lifecycle. We offer UID Metal Tags, UID Foils and UID Labels for any application. We have a knowledgeable staff which will help you choose the right material for any application. Call for a quote today!