MIL-STD-13231
w/CHANGE 2
iv
CONTENTS
PARAGRAPH PAGE
4.2.5 Special characteristics ------------------------------------------------------------ 4
4.2.6 Contractor and Government Entity (CAGE) code ------------------------- 5
4.3 Identification to be marked on equipment ----------------------------------- 5
4.3.1 Exceptions to table I--------------------------------------------------------------- 5
4.3.2 Uniquely small items -------------------------------------------------------------- 5
4.3.3 Limited use / multiple use -------------------------------------------------------- 5
4.3.4 Specific item identification ------------------------------------------------------- 6
4.3.5 Use of unit pack/bag and tag --------------------------------------------------- 6
4.4 Reference designations, government type numbers and -
designators for parts assemblies ---------------------------------------------- 6
4.4.1 Reference designations ---------------------------------------------------------- 7
4.4.1.1 Reprocurements ------------------------------------------------------------------- 7
4.5 Recycled, recovered, environmentally preferable, or biobased
Materials ----------------------------------------------------------------------------- 7
5. DETAIL REQUIREMENTS ------------------------------------------------------------------ 7
5.1 Type numbers and type designation ------------------------------------------ 7
5.1.1 Electron tubes ---------------------------------------------------------------------- 7
5.1.2 Electrical / electronic parts and printed wiring boards -------------------- 7
5.1.3 Nameplate data for articles of equipment ----------------------------------- 7
5.2 Special requirements for marking of containers --------------------------- 7
5.2.1 Identification of set, article of equipment, or contents -------------------- 7
5.2.2 Identification of container only -------------------------------------------------- 7
5.3 Special markings on articles of equipment ---------------------------------- 8
5.3.1 Marking battery circuits ----------------------------------------------------------- 8
5.3.1.1 Warning label ----------------------------------------------------------------------- 8
5.3.2 High voltage notice ---------------------------------------------------------------- 8
5.3.3 Radioactive material -------------------------------------------------------------- 8
5.3.4 Non-ionizing radiation------------------------------------------------------------- 8
5.3.5 Technical literature caution notice --------------------------------------------- 8
5.3.6 Schematic, wiring, and cable diagram ---------------------------------------- 9
5.3.7 Chassis identification ------------------------------------------------------------- 9
5.3.8 Modification work-order number ----------------------------------------------- 9
5.3.9 Sensitive electronic devices ----------------------------------------------------- 9
5.4 Location of marking --------------------------------------------------------------- 9
5.4.1 General ------------------------------------------------------------------------------- 9
5.4.2 Type number and type designations ------------------------------------------ 10
5.5 Marking processes ---------------------------------------------------------------- 10
5.6 Marking on wood surfaces------------------------------------------------------- 10
5.6.1 Exterior wood containers--------------------------------------------------------- 10
5.6.2 Other wood surfaces -------------------------------------------------------------- 10
5.6.3 Branding------------------------------------------------------------------------------ 10
5.7 Size and form of characters ----------------------------------------------------- 10
5.8 Labels --------------------------------------------------------------------------------- 10
5.8.1 Border--------------------------------------------------------------------------------- 10
5.8.2 Material and process -------------------------------------------------------------- 10
5.8.3 Radius of corners ------------------------------------------------------------------ 11
5.8.4 Mounting ----------------------------------------------------------------------------- 11
5.9 Spectral gloss ----------------------------------------------------------------------- 11
5.10 Opacity ------------------------------------------------------------------------------- 11
5.11 Permanency, durability, and legibility ----------------------------------------- 11
5.11.1 Permanency, durability, and legibility tests ---------------------------------- 11
5.12 Facsimiles --------------------------------------------------------------------------- 13
5.13 Workmanship ----------------------------------------------------------------------- 13
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