MIL STD 130 - Unique Identifier (UID)

Unique Identifier (UID)

Unique identifier (UID) or (UII), also referred as Item Unique Identification (IUID) in the DoD terminology, marks qualifying tangible items in the form of a number, character string, or sequence of bits assigned to separate entity or its relevant attribute that uniquely distinguish it from other entities. The construction rules depend upon the serial number being unique to that part number (construct 2) or unique to the company (construct 1). In practice most companies construct the UID with Cage-part-serial (construct 2). The general custom (not yet a 'shall') is that new acquisitions are marked using cage code in Format 06 (17V, 1P, S), while legacy (older stuff, already owned, or purchased without the DFARS 252.211-7003 clause in the contract) is marked with DoDaac of the entity making the label, in format 06 also (7L, 1P, S). The 17V means cage code and the 7L means DoDaac in the first position.

Construct 1 is a quickie gap-filler that permits printing a string of cage-serial in sequence and carrying the strip to the location to slap them on any kind of item. When reporting these the DoD would like much additional information, anything that can be pulled off the nameplate such as description, manufacturer, dates, and other key info. However, many depots and hired hands doing this labeling are not including any info on what they're reporting so the DoD is going very cold on using Construct 1. Use Construct 1 for new sales ONLY if your plant makes only 1 item, more or less, and your software provides plenty of 'marks'--reports all the info that would exist on a well-filled out product label, including warranty info.