4. GENERAL REQUIREMENTS
MIL-STD-130N
w/Change 1
4.1 Methods of applying. The required marking shall be applied to an identification plate(s) (see Figure 1), identification band(s), identification tag(s), or identification label(s) securely fastened to the item, or shall be applied directly to the surface of the item and be compliant with 4.2, 4.3, 4.5, and 4.7. The design activity shall implement the guidance and compliance criteria of 4.2 in specifying the actual method(s) to be used in applying markings. Suggested marking methods are shown in Table II with suggested selection criteria shown in Table III.
a. Marking materials creating hazardous conditions shall not be used.
b. When items cannot be physically marked or tagged due to a lack of marking space or because marking or tagging would have a deleterious effect, the marking requirements specified in Section 5 shall be:
(1) Applied to a supplemental container that may or may not provide item protection, becomes a part of the individual item, and is provisioned and managed as a component of that item, or
(2) Applied to the unit pack in addition to, or in combination with, the identification marking information specified in MIL-STD-129. When combining marking requirements with MIL-STD-129, the manner, method, form, and format of MIL-STD-129 MRI and HRI requirements shall be followed and the informational requirements of this standard shall be fulfilled.
c. The delineating document may include a marking provision for "Method Optional"
subject to the item marking provisions of this standard.
4.2 Location, size, and content. Whenever practicable, the location of the marking on the item shall ensure its readability during normal operational use. Marking size shall satisfy the legibility requirements of 4.3. All aspects of identification marking shall be specified directly or by reference on the document delineating the item to be marked.
4.3 Permanency and legibility. Direct part marking and identification plates, identification bands, identification tags, or identification labels used shall be as permanent as the normal life expectancy of the item and be capable of withstanding the environmental tests and cleaning procedures specified for the item to which it is affixed. The appropriate marking method shall be selected to ensure the mark will withstand the specified rebuild processes (see 4.3.a for exception). It is not intended that existing items be subjected to retest solely because of the addition of an MRI requirement except when required to ensure compliance with 4.5. When IUID is required for new items that are being tested, the marking on the part shall be subjected to the same test conditions. Marking methods shall account for final finished condition of the item including paints, coatings, and sealants to assure readability. Labels may contain a free text warning such as "AUTHORIZED REMOVAL ONLY" or "DO NOT REMOVE" to preclude unintentional removal.
a. If it is not feasible to mark an item with MRI that will survive its intended life cycle, including the rebuild process when applicable, the item shall be marked in a way that will survive its anticipated life cycle up to the point of rebuild. The rebuild process shall ensure that the UII is linked with the item until the part can be re-marked with the original UII data set prior to leaving the rebuild facility.
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