MIL-STD-1285-SUP-2 Marking of Electrical and Electronic PartsThis standard establishes requirements for the physical marking of electrical and electronic parts. This standard should be implemented by incorporating suitable requirements directly in acquisition documents.

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MIL-STD-1285D

APPENDIX D

FSC 5920 - FUSES, FUSEHOLDERS, LIGHTNING ARRESTERS, ELECTROSTATIC DISCHARGERS, AND TELEPHONE PROTECTORS

D.1 SCOPE

D.1.1 Scope. The following define the requirements that pertain to both commercial and military electronic devices. Where the requirements are not stated, refer to sections 4 and 5 herein. This appendix is a mandatory part of this standard. The information contained herein is intended for compliance.

This appendix establishes the marking requirements that apply to a specific FSC. These requirements are to be applied in addition to the requirements of sections 4 and 5 herein. In the event of conflict between this appendix and section 4 or 5, the appendix shall take precedence.

D.2 APPLICABLE DOCUMENTS. This section is not applicable to this appendix. D.3 GENERAL REQUIREMENTS

D.3.1 Functional marking.

D.3.1.1 Terminal identification. When specified in the acquisition document, lightning arresters, and telephone protectors shall be identified as to their function (such as "LINE", "LOAD", "INSTRUMENT", "INDICATOR", "GROUND") using numerals, alphabetic symbols, or their functional names as applicable.

D.3.1.2 Other functional marking. Electrical circuit diagrams, cautionary markings, alignment marks, assembly instructions, and other markings and symbols shall be as specified in the acquisition document.

D.3.2 Part identification marking.

D.3.2.1 Method I marking. Unless otherwise specified in the acquisition document, marking of fuses, fuseholders, lightning arresters, electrostatic dischargers, and telephone protectors shall conform to method I. Where size limitations will not accommodate all of the marking requirements of 5.2, the following requirements and order of precedence shall apply:

a. Identifying number.

b. Manufacturer's source code, name or trademark. c. Current rating, when applicable.

d. Voltage rating, when applicable. e. Date code, when applicable.

f. Other ratings and markings, when applicable.

D.3.2.2 Me thod II color coding (telephone protectors only). The dc breakdown voltage ratings shall be color coded with three dots in accordance with method II, except that the colors to be used shall be as specified in the acquisition document.