Navy Nametag 

Purchase this font from Embroidery Headquarters

There are 2 versions of this font, the first one is slightly more narrow and some of the lower case letters are different (see the letter t for example) Which version you need depends on the MILSPEC version that you are looking at

Style : Block Font
Navy Nametag is new and is not standard in any level, You can purchase Navy Nametag by clicking the link above