MIL-STD-1285D
APPENDIX F
FSC 5930 - SWITCHES
F.1 SCOPE
F.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.
F.2 APPLICABLE DOCUMENTS. This section is not applicable to this appendix. F.3 GENERAL REQUIREMENTS
F.3.1 Functional marking.
F.3.1.1 Polarity (thermostatic switches only). A "+" sign shall be marked adjacent to the positive terminal of a polarized metallic or bimetallic thermostatic switch.
F.3.1.2 Rotary switches. Rotary switch terminals shall be marked with numbers, whose sequence is counterclockwise and visible when viewed from the rear end of the switch, unless otherwise specified in the acquisition document. Open-frame construction switches may be marked with terminal numbers on a marking plate. Open-frame construction switches shall be marked with a contrasting color dot, raised or depressed molding, or punched indentation on or near the periphery of the switch section, and marking plate if used. It shall be between terminals 1 and 2 and shall be visible when viewed from the rear end of the switch, unless otherwise specified in the acquisition document.
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