DLA MS27708 REV J-2011 SWITCH TOGGLE FOUR POSITION ON CENTER OFF.pdf

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1、AMSC N/A FSC 5930 INCH-POUND MS27708J 3 October 2011 SUPERSEDING MS27708H 27 March 1995 DETAIL SPECIFICATION SHEET SWITCH, TOGGLE, FOUR POSITION ON, CENTER OFF This specification is approved for use by all Departments and Agencies of the Department of Defense. The requirements for acquiring the swit

2、ch described herein shall consist of this specification sheet and the latest issue of MIL-DTL-9419. -+ FIGURE 1. Dimensions and configurations Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS27708J 2 Circuit diagram Arrows indicate contact in the d

3、irection of lever travel as viewed from the rear of the switch. Inches mm Inches mm Inches mm .005 .015 .016 .020 .078 .094 0.13 0.38 0.41 0.51 1.98 2.39 .180 .200 .218 .275 .455 .688 4.57 5.08 5.54 6.99 11.56 17.48 .937 .995 1.156 1.215 1.255 23.80 25.27 29.36 30.86 31.88 NOTES: 1. Dimensions are i

4、n inches. 2. Metric equivalents are given for general information only. 3. Unless otherwise specified, tolerance is .010 (0.25 mm). 4. Terminal end of switch shall have no external moving parts and shall have barriers between terminals. 5. Terminal length optional but must not extend beyond common t

5、erminal or diameter of switch. 6. The design of the button and shaft on MS27708-4 shall provide for absolute protection from electrical shock from live shaft and attaching screw. A button shield of insulating material may be utilized for this purpose, as shown in figure 1. Other button and shaft des

6、igns may be used to assure this protection, however, all such designs must have prior approval from the qualifying activity. The use of epoxy adhesive alone as an electrical insulation material is not permitted. FIGURE 1. Dimensions and configurations - Continued. Provided by IHSNot for ResaleNo rep

7、roduction or networking permitted without license from IHS-,-,-MS27708J 3 REQUIREMENTS: Design and configuration: See figure 1. Material: Actuating caps: Actuating caps shall be polycarbonate in accordance with ASTM D3935, color-black. Marking: Terminal identification letters shall be molded or engr

8、aved adjacent to designated terminal and must be permanent, legible, and clearly visible. Arrows on top surface of housing shall indicate the direction of travel. They shall be depressed and white filled. Electrical endurance: Inductive loads: MS27708-4: 115 V ac, 400 Hz: 5 amperes, 250,000 cycles.

9、28 V dc: 20 amperes, 150,000 cycles. 5 amperes, 250,000 cycles. Part of Identifying Number (PIN): MS 27708-4. Supersession data: MS27708-1, MS27708-2, and MS27708-3 are canceled and superseded by MS27708-4. The margins of this specification are marked with vertical lines to indicate where modificati

10、ons from this revision were made. This was done as a convenience only and the Government assumes no liability whatsoever for any inaccuracies in these notations. Bidders and contractors are cautioned to evaluate the requirements of this document based on the entire content irrespective of the margin

11、al notations. Referenced documents. In addition to MIL-DTL-9419, this document references the following: ASTM D3935 Custodians: Preparing activity: Army AV DLA CC Navy AS Air Force 85 Project (5930-2011-035) DLA CC Review activities: Air Force 99 NOTE: The activities listed above were interested in

12、this document as of the date of this document. Since organizations and responsibilities can change, you should verify the currency of the information above using the ASSIST Online database at https:/assist.daps.dla.mil/. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-