1、AMSC N/A FSC 5930 INCH-POUND MIL-PRF-8805/32J 11 May 2010 SUPERSEDING MIL-PRF-8805/32H 25 June 2003 PERFORMANCE SPECIFICATION SHEET SWITCHES, SENSITIVE, SPDT, 7 AMPERES, WATERTIGHT This specification is approved for use by all Departments and Agencies of the Department of Defense. The requirements f
2、or acquiring the switches described herein shall consist of this specification sheet and MIL-PRF-8805. MS27994-1,-2,-4 and -5 FIGURE 1. Dimensions and configurations. .214Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-8805/32J 2 Turret termi
3、nals MS27994-3 NOTES: 1. Dimensions are in inches. 2. Unless otherwise stated, tolerances are .02 (.5 mm) for two place decimals and .005 (.13 mm) for three place decimals. 3. Mounting holes will accept pins or screws of .087 (2.21 mm) maximum diameter on .188 .002 (4.78 .05 mm) centers. 4. Exact sh
4、ape of switch optional, provided dimensions specified are not exceeded. 5. Metric equivalents are given for general information only. FIGURE 1. Dimensions and configurations (continued). Inches mm Inches mm Inches mm .001 0.03 .088 2.24 0.326 8.28 .003 0.08 .096 2.44 0.33 8.4 .020 0.51 .121 3.07 0.4
5、2 10.7 .040 1.02 .187 4.75 0.425 10.80 .050 1.27 .188 4.78 0.626 15.90 .06 1.52 .214 5.44 2.00 50.8 .07 1.78 .27 6.9 12.00 304.8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-8805/32J 3 REQUIREMENTS: Dimensions and configurations: See figur
6、e 1. Enclosure design: 3 watertight. Temperature characteristic: 1 (-55C to +85C). Shock type: M (100 gs). Vibration grade: 2 (10 Hz to 2,000 Hz). Weight: MS27994-1, MS27994-2, MS27994-4, and MS27994-5: .030 pound maximum. MS27994-3: .01 pound maximum. Operating characteristics: Actuating force: 17
7、ounces maximum. Release force: 4 ounces minimum. Movement differential: .005 inch maximum Pretravel: .050 inch maximum. Overtravel: .004 inch minimum. Terminals: MS27994-1 and MS27994-2: NEMA HP3, SAE-AS22759/11 or equivalent wire leads. MS27994-3: When terminals are gold plated, the finish shall be
8、 a minimum of .000030 inch and a maximum of .000100 inch thick. MS27994-4 and MS27994-5: SAE-AS22759/11 or equivalent wire leads. Contact resistance: MS27994-1, MS27994-3, and MS27994-4: Not applicable. MS27994-2, and MS27994-5: 70 milliohms, maximum. Dielectric withstanding voltage: At atmospheric
9、pressure: 1,000 V rms. Altitude: 400 V rms at 50,000 feet. In qualification inspection table after electrical endurance, the dielectric withstanding voltage points of application between all unconnected terminals of the same pole is not applicable. Mechanical endurance: 25,000 cycles. Electrical end
10、urance: 25,000 cycles. Electrical ratings: See table I. Part or identifying number (PIN): See table III. MS27994 has been cancelled and replaced by MIL-PRF-8805/32. The MS27994 military part identification numbers have been retained. Provided by IHSNot for ResaleNo reproduction or networking permitt
11、ed without license from IHS-,-,-MIL-PRF-8805/32J 4 Qualification: Group submission: Sample: The number of sample units for each PIN covered by this specification sheet shall be as specified in table II. Test routine: The sample units shall be divided as specified in table II and subjected to the ins
12、pections indicated. TABLE I. Electrical ratings. PIN Load Sea level 50,000 feet 28 V dc 28 V dc 115 V ac, 400 Hz (Amperes) (Amperes) (Amperes) MS27994-1, MS27994-3, MS27994-4, (Silver contacts) Resistive 7 7 7 Inductive 4 4 2.5 Motor 2.5 1.5 - - - Lamp 1 1 - - - MS27994-2, MS27994-5, (Gold contacts)
13、 Resistive 1 - - - 1 Inductive .5 - - - .5 1/ MS27994-1 and MS27994-2 are inactive for new design. TABLE II. Qualification inspection. Switches for testing Number of sample units Examination or test Extent of approval MS27994-4 30 Complete qualification tables, as applicable, of MIL-PRF-8805 MS27994
14、-1 and MS27994-4 MS27994-5 8 Group I MS27994-2 and MS27994-5 3/ Visual and mechanical examination Insulation resistance Operating characteristics 8 from group I Group II Overload cycling Electrical endurance 1/ At sea level Resistive load, dc Inductive load, dc At reduced barometric pressure Resisti
15、ve load, dc Inductive load, dc Dielectric withstanding voltage 2/ Operating characteristics (all group II sample units) See footnotes at end of table. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-8805/32J 5 TABLE II. Qualification inspecti
16、on - continued. Switches for testing Number of sample units Examination or test Extent of approval MS27994-3 2 Group I MS27994-3 3/ Visual and mechanical examination Insulation resistance Operating characteristics Terminal strength Dielectric withstanding voltage Solderability 1/ Two sample units on
17、ly. 2/ Seal level dielectric withstanding voltage test is to be conducted only on those units which were tested for sea level electrical endurance. Altitude dielectric withstanding voltage test is to be conducted on those units which were tested for altitude electrical endurance tests. 3/ Applies on
18、ly if MS27994-4 is qualified. TABLE III. PIN. PIN Contact Termination MS27994-1 Silver Wire leads 1/ MS27994-2 Gold filled or diffused Wire leads 2/ MS27994-3 Silver Turret terminals MS27994-4 Silver Wire leads 3/ MS27994-5 Gold filled or diffused Wire leads 3/ 1/ NEMA HP3, MIL-W-22759/11 or equival
19、ent wire leads. Inactive for new design. Use MS27994-4. 2/ NEMA HP3, MIL-W-22759/11 or equivalent wire leads. Inactive for new design. Use MS27994-5. 3/ SAE-AS22759/11 or equivalent wire leads. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-
20、8805/32J 6 Reference documents: MIL-PRF-8805 SAE-AS22759/11 NEMA-HP3 The margins of this specification are marked with vertical lines to indicate where modifications from this revision were made. This was done as a convenience only and the Government assumes no liability whatsoever for any inaccurac
21、ies in these notations. Bidders and contractors are cautioned to evaluate the requirements of this document based on the entire content irrespective of the marginal notations. Custodians: Preparing activity: Army - CR DLA - CC Navy EC Air Force 85 (Project 5930-2008-049) DLA CC Review activities: Na
22、vy - AS 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 https:/assist.daps.dla.mil/ . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
