1、AMSC N/A FSC 5930 INCH-POUND MS21346F 21 December, 2005 SUPERSEDING MS21346E 4 September 1991 DETAIL SPECIFICATION SHEET SWITCH, TOGGLE, POSITIVE BREAK, LEVER LOCK AND TOGGLE, MINIATURE, TOGGLE SEALED, INTEGRATED WIRE TERMINALS, SINGLE POLE, .469 MOUNTING BUSHING This specification is approved for u
2、se by all Departments and Agencies of the Department of Defense. The complete requirements for acquiring the switch described herein shall consist of this specification and the latest issue of MIL-DTL-8834. FIGURE 1. Dimensions and configuration. Provided by IHSNot for ResaleNo reproduction or netwo
3、rking permitted without license from IHS-,-,-MS21346F 2 FIGURE 1. Dimensions and configuration - Continued. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS21346F 3 FIGURE 1. Dimensions and configuration - Continued. Provided by IHSNot for ResaleNo
4、 reproduction or networking permitted without license from IHS-,-,-MS21346F 4 Inches mm Inches mm Inches mm Inches mm Inches mm .002 .003 .005 .010 .012 .016 0.05 0.08 0.13 0.25 0.30 0.41 .024 .025 .030 ,032 .04 .045 0.61 0.64 0.76 0.81 1.02 1.14 .047 .052 .072 .160 .169 .338 1.19 1.32 1.83 4.06 4.2
5、9 8.59 .364 .430 .432 .438 .469 .470 9.52 10.92 10.97 11.13 11.91 11.94 .480 .572 .670 .706 .983 1.260 12.19 14.53 17.02 17.93 24.97 32.00 NOTES: 1. Dimensions in inches. 2. Metric equivalents are given for general information only. 3. Unless otherwise specified, tolerances are .010 on decimals and
6、5 on angles. 4. For hardware detail specifications, see appendix of MIL-DTL-8834. 5. For design feature purposes, this standard takes precedence over procurement documents referenced herein. 6. Referenced documents shall be of the issue in effect on date of invitation for bid. 7. Toggle seal test:
7、Method 11. 8. Unlocking force: 4 1 pound. 9. Configuration of switch case housing, terminals and barriers. Design optional providing maximum dimensions specified are not exceeded. 10. Altitude: 50,000 feet. 11. 115 V ac 60 hertz electrical endurance tests are to be performed at room temperature and
8、pressure. 12. Terminals shall adequately accept a wire contact within dimensional limits of SAE-AS39029/1-101. 13. The sealing grommet shall seal on smooth wire insulations of .040 ()1.02 mm) to .083 (2.11 mm) diameter. 14. Plug, grommet sealing, electrical connector in accordance with MS27488-20. 1
9、5. Tool contact, insertion-extraction, electrical connector in accordance with M81969/14-10. 16. The terminal sealing grommet shall be color coded red to indicate contact size. 17. Maximum weight for lever lock, .069 pound (31.5 grams). 18. Maximum weight for switch without level lock, .053 pounds (
10、24 grams). FIGURE 1. Dimensions and configuration - Continued. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS21346F 5 TABLE I. Detail requirements. 1/ 2/ Current capacity in amperes Circuit made between terminals as indicated with the toggle leve
11、r in these positions: 3/ Resistive load Inductive load 115 Volts 115 Volts MS dash no. Locking comb. Opposite keyway side 5/ Center positions Keyway side 5/ 28 V dc 60 Hertz ac 400 Hertz ac 28 V dc 60 Hertz ac 400 Hertz ac Life low current level switching 5 mV -211 A, B, C, D, E OFF ON 1-2 -221 OFF
12、231 C, E NONE ON 1-2 -241 J, B ON 2-3 OFF NONE -271 F, H MOM-ON 2-3 -281 K NONE -311 G, K, L ON 2-3 OFF -321 7/ 8/ L NONE ON 2-3 MOM-ON 1-2 5 2 3 1 4/ 1 2 25 A 5/ 1/ For lever lock, part number shall consist of MS number, locking combination letter and dash number; example part number: MS21346-B211
13、 - Toggle sealed, on-off-on. Locked in center position. 2/ Without lever lock, part number shall consist of MS number and dash number. Example part number: MS21346-211-Toggle sealed on-off-on. 3/ Direction of movement of internal mechanism is opposite to the direction of the toggle movement. 4/ With
14、 time constant of .020 .002 seconds. 5/ Contact resistance not to exceed 50 ohms during life, low current level switching. 6/ Nonfunctional terminals shall not be supplied. 7/ Dielectric withstanding voltage: 1,200 V rms at sea level (center on circuits). 8/ Delayed action of the switch toggle lever
15、 may cause circuit to close on open before snap action mechanism trips. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS21346F 6 TEST REQUIREMENTS: Qualification and group B tests are to be performed in accordance with MIL-DTL-8834 except: During a
16、ll tests, switches are to be fully wired with appropriate wire and terminal contacts. Contact voltage drop: The contact voltage drop with two terminals and the switch contact in series shall not exceed 8 millivolts. This measurement shall be made from one wire contact through the switch contacts to
17、the other wire contact with .1 ampere at a voltage of 2-4 V dc. Fluid immersion. Two additional qualification of group B switches, fully wired, shall be subjected to three exposure cycles in accordance with a. and b. a. The terminal end of the switch shall be immersed to a depth of .375 (9.53 mm) in
18、ch measured from the exposed face of the sealing grommet in each of the following fluids for 2 +.5, -0 minutes with a maximum of two minutes between immersions. After each immersion, the excess liquid is to be blown off the switch external surfaces with an air jet. (1) MIL-DTL-5624: Turbine fuel, av
19、iation, grade JP-4 or JP-5. (2) Skydrol 500A: Federal stock number 9150-00-857-9069. (3) MIL-PRF-87252: Coolant Fluid, Hydrolytically Stable, Dielectric. (4) ASTM-E1119: Ethylene glycol, technical uninhibited. (5) MIL-PRF-7808: Lubricating oil, aircraft turbine engine synthetic base. b. Exposure to
20、ambient air for 24 2 hours. c. At the end of the third cycle, the insulation resistance shall be measured and the switches shall be inspected for cracking and loosening of bonds and seams. When switches are tested as specified the insulation resistance shall not be less than 1,000 megohms and there
21、shall be no evidence of cracking and loosening of bonds and seams. d. Toggle seal test: Method II. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS21346F 7 Referenced Documents MIL-DTL-5624 MIL-DTL-8834 MIL-PRF-7808 MIL-PRF-87252 MS27488 ASTM-E1119
22、 SAE-AS39029/1 Marginal notations are not used in this revision to identify changes with respect to the previous issue due to the extent of the changes. Custodians: Preparing activity: Army - CR DLA - CC Navy - AS Air Force - 11 (Project 5930-1924) DLA - CC Review activities: Army - AR, MI Navy - EC
23、 Air Force 99 NOTE: The activities listed above were interested in 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 http:/assist.daps.dla.mil/. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
