MIL-STD-1285D
APPENDIX A
FSC 5905 - RESISTORS
A.1 SCOPE
A.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.
A.2 APPLICABLE DOCUMENTS. This section is not applicable to this appendix. A.3 GENERAL REQUIREMENTS
A.3.1 Functional marking (variable resistors).
A.3.1.1 Terminal identification. Terminals shall be marked so that number 1 represents the counterclockwise terminal, number 2 represents the variable contact terminal, and number 3 represents the clockwise terminal. The terms "counterclockwise" and "clockwise" are used in relation to the actuating device (shaft of screw) when viewed from the exposed operating end.
A.3.1.1.1 Pin or solder-lug type. The numerals designating terminal identification may be marked adjacent to the terminal, or the circuit diagram (see figure A-1) may be used, provided that such identification clearly indicates the applicable terminals. The colors, as shown on figure A-1, are not required for pin or solder-lug terminal type resistors.
A.3.1.1.2 Flexible-lead type. Colors of flexible-lead insulation shall conform to MIL-STD-104, and terminals shall be identified as follows:
Terminal number Color of insulation
1 Yellow
2 Red
3 Green
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