4.1 General. Functional and part identification marking shall be applied in the location specified in the acquisition document. Where size, surface condition, or other design considerations will not allow marking, the acquisition document shall specify the method of application (unit package, tag, or label), and the exact marking requirements.
Special marking (caution warnings, radioactive) also shall be as specified in the acquisition document. Identification and marking requirements shall be in accordance with sections 4 and 5 of this standard and the peculiarities as included in the acquisition document. In the event of conflict between this standard and an acquisition document, the acquisition document shall govern.