There are two different ways of marking the items with unique identification i.e. direct part marking and UID labels or nameplates. The engraved nameplates are used for item identification in case the environment of the item doesn't allow direct part marking. The UID data of the items are encoded to the labels to prepare engraved nameplates which is attached or fastened to the item with the help of adhesive or screws. The advantage of using nameplates over the direct part marking (DPM) is its wide functionality. In case there is an incorrect entry while DPM, the whole item is rejected. On the other hand, if nameplates are used for the purpose they can be changed if necessary. Of course, if the nameplates are not encoded with correct data, they are not accepted by the UID Registry.



The DoD has set a standard for the engraved nameplates according to which the nameplates are manufactured and encoded with UID data. The manufacturer and the contractors have to keep in mind that the instructions provided by the Department of Defense in MIL-STD-130 are essential to follow to construct UID compliance nameplates. The nameplates can be metallic or non-metallic depending on the requirements of the items or parts. Sometimes, hard plastics are used for the purpose. However, metals such as stainless steel, polyester, aluminum are also chosen by the manufacturer. The metal engraved nameplates may use the same kind of metal as the item or different. But care should be taken that the metals of the plates don't cause any harm to the metal or functionality of the item.

The Essential Features of Engraved Nameplates

While manufacturing the nameplates, it is essential to follow the instructions mentioned in the MIL-STD-130 so that the nameplates can meet the UID requirements.

Nameplates Formatting

The MIL-STD-130 has specified some formats for the engraved nameplates. The UID data of the items are entered into the nameplates in that format so that the department can maintain a balance with the coding of the items. The contractors are required to mention construct #1 or construct #2 in their form while submitting the data to the UID registry. Apart from that, it is essential to mention data identifiers, enterprise identifiers, test element identifiers. There is a restriction to the size of the nameplates and the letters of the data.

Engraving with 2D Barcode

The UID data of the items are engraved to the nameplates in the form of 2D datamatrix barcode. These are the machine-readable codes and are decoded with the help of 2D barcode scanners. The MIL-STD-130 standard has also mention about the use of human readable data on the engraved nameplates. The standard has also provided instruction about font type and size that should be used in the nameplates.

Nameplates Material, Marking Process and Attachment Method

There is no condition about the user of material for the engraved nameplates. The manufacturer can use metallic and non-metallic material for the purpose. The nameplates are attaches to the items with metal threads or screws.

UID Compliance

It is mandatory that the engraved nameplates should have UID compliance.