1、Comments, suggestions or questions on this document should be addressed to Defense Supply Center Columbus, ATTN: VAT, Post Office Box 3990, Columbus, OH 43218-3990, or emailed to switchdla.mil. Since contact information can change, you may want to verify the currency of this address information usin
2、g the ASSIST Online database at http:/assist.daps.dla.mil/ AMSC N/A FSC 5930 INCH-POUND MIL-DTL-13735G 6 March 2008 SUPERSEDING MIL-DTL-13735F 21 December 2005 DETAIL SPECIFICATION SWITCHES, TOGGLE: 28 VOLT DC This specification is approved for use by all Departments and Agencies of the Department o
3、f Defense. 1. SCOPE 1.1 Scope. This specification covers toggle switches for use in direct current (dc) electrical circuits. The toggle switch will be referred to as “switch” herein (see 6.1). 1.2 Classification. Switches will be of the following types, classes, and grades as specified (see 6.2 and
4、6.5): Type I - Single-pole, single-throw. Type II - Single-pole, double-throw. Type III - Multipole, single-throw. Type IV - Multipole, multithrow. Class A - Momentary contact. Class B - Maintained contact. Class AB - Momentary and maintained contact Grade 1 - Waterproof Grade 2 - Nonwaterproof 1.3
5、Part or Identifying Number (PIN). Except when part numbers are specified on the drawing, MS standard or military specification sheet (MS sheet), the PIN to be used for switches acquired to this specification is created as follows: M 13735 X X X Prefix to indicate military specification Specification
6、 number Type number (1 = Type I, 2 = Type II, 3 = Type III and 4 = Type IV) (see 1.2) Class letter ( x = Class A, y = Class B and z = Class AB) (see 1.2) Grade number (see 1.2) 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this section are specified in sections 3 and 4 of this specifi
7、cation. This section does not include documents cited in other sections of this specification or recommended for additional information or as examples. While every effort has been made to ensure the completeness of this list, document users are cautioned that they must meet all specified requirement
8、s documents cited in sections 3 and 4 of this specification, whether or not they are listed. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-13735G 2 2.2 Government documents. 2.2.1 Specifications, standards, and handbooks. The following spec
9、ifications, standards, and handbooks form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract. FEDERAL STANDARDS FED-STD-H28/2 - Screw-Thread Standards for Federal Services Section 2 United
10、Inch Screw Threads-UN and UNR Thread Forms. DEPARTMENT OF DEFENSE SPECIFICATIONS MIL-DTL-13486 - Cables, Special Purpose, Electrical: Low-Tension, Heavy Duty Single-Conductor and Multiconductor Shielded and Unshielded, General Specification for. DEPARTMENT OF DEFENSE STANDARDS MIL-STD-130 - Identifi
11、cation Marking of US Military Property. MIL-STD-202 - Test Methods for Electronic and Electrical Component Parts. MS33800 - Connector, Receptacle, Electrical-Pin Contact. No 12, 14 and 16 A.W.G. Waterproof. MS39061 - Switch. Toggle-SPST. SPDT 24 Volt dc, 25 Amp (Waterproof). (Copies of these documen
12、ts are available online at http:/assist.daps.dla.mil/quicksearch/ or http:/assist.daps.dla.mil/ or from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094.) 2.3 Non-Government publications. The following documents form a part of this document to the
13、 extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract. AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI) ANSI-J-STD-001 - Soldered Electrical and Electronic Assemblies, Requirements for s. ANSI-Z540-1 - Calibration Laboratories
14、 and Measuring and Test Equipment, General Requirements for. (Copies of these documents are available online at http:/dod.nssn.org/search.html or from the American National Standards Institute (ANSI), 11 West 42nd Street, New York, NY 10036-8002, telephone 212-642-4900, fax 212-302-1286.) AMERICAN S
15、OCIETY FOR TESTING AND MATERIALS (ASTM) ASTM B117 - Standard Method of Salt Spray (Fog) Testing. ASTM G21 - Standard Practice for Determining Resistance of Synthetic Polymeric Materials to Fungi (Copies of these documents are available online at http:/www.astm.org or from the American Society for Te
16、sting and Materials, 100 Barr Harbor Drive, West Conshohocken, Pennsylvania, 19428-2959.) INTERNATIONAL ORGANIZATION FOR STANDARDS (IS0) ISO 10012-1 - Quality Assurance Requirements for Measuring Equipment - Part 1; Metrological Confirmation System for Measuring Equipment. (Copies of these documents
17、 are available online at http:/dod.nssn.org/search.html or from the American National Standards Institute (ANSI), 11 West 42nd Street, New York, NY 10036-8002, telephone 212-642-4900, fax 212-302-1286.) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,
18、-MIL-DTL-13735G 3 (Non-Government standards and other publications are normally available from the organizations which prepare or which distribute the documents. These documents also may be available in or through libraries or other informational services.) 2.4 Order of precedence. In the event of a
19、 conflict between the text of this document and the references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 Qualification. Switches furnished
20、under this specification shall be products which are authorized by the qualifying activity for listing on the applicable qualified products list (QPL) at the time of award of contract (see 4.3 and 6.3). 3.2 Materials. Materials shall be as specified herein and in referenced specifications and standa
21、rds (see 4.8.1). 3.2.1 Recycled, recovered, or environmentally preferable materials. Recycled, recovered, or environmentally preferable materials should be used to the maximum extent possible provided that the material meets or exceeds the operational and maintenance requirements, and promotes econo
22、mically advantageous life cycle costs. 3.2.2 Solder. Solder and soldering flux shall conform to ANSI J-STD-001 (see 4.8.1). 3.2.3 Metal parts. Metal parts shall be of a corrosion resistant material or shall be protected from corrosion in accordance with the manufacturers standard practice or in acco
23、rdance with the applicable MS standard or drawing (see 4.8.1). 3.2.4 Pure tin. The use of pure tin, as an underplate or final finish, is prohibited both internally and externally. Tin content of components and solder shall not exceed 97 percent, by mass. Tin shall be alloyed with a minimum of 3 perc
24、ent lead (see 6.4.3). 3.3 Design and construction. Switch dimensions and construction shall be in accordance with MS39061, or as specified by the acquiring activity (see 4.8.1, 4.8.2, and 6.2). 3.3.1 Cable. Cable used in leads shall conform to type I of MIL-DTL-13486 (see 4.8.1 and 4.8.2). 3.3.2 Thr
25、eaded parts. Screw threads of the form, number per inch, and class specified on the applicable drawing or military standard shall be in accordance with FED-STD-H28/2 (see 4.8.1 and 4.8.2). 3.3.3 Lever positions. Lever positions and locations of momentary and maintained contact positions shall be in
26、accordance with the applicable MS standard or drawing (see 4.8.1 and 4.8.2). 3.3.4 Electrical connections. Electrical connections or terminals shall be in accordance with MS33800 or applicable drawing for each lever position (see 4.8.1 and 4.8.2). 3.4 Performance. 3.4.1 Electrical. 3.4.1.1 Contact v
27、oltage drop. The voltage drop across all pairs of closed electrical contacts shall be not more than 50 millivolts (mV) when the switch is carrying the rated resistive load current specified on the applicable MS or drawing (see 4.8.3). 3.4.1.2 Overload. The switch shall carry a current equal to 150 p
28、ercent of the rated resistive load current specified on the applicable MS or drawing without damage (see 4.8.4). 3.4.1.3 High voltage. The switch shall evidence no sparking, arcing, burning, smoking, charring, cracking, loosening, rupturing or damage after or while, 440 V root mean square (rms) at 6
29、0 hertz (Hz) is applied for 1 minute to all pairs of open electrical contacts (see 4.8.5). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-13735G 4 3.4.2 Mechanical. 3.4.2.1 Withstanding force. Unless otherwise specified on the applicable MS
30、or drawing, the switch shall withstand a force of 25 pounds in all actuating directions without damage (see 4.8.6). 3.4.2.1.1 Connector or terminal strength. Connectors or terminals shall withstand a force of 25 pounds without deformation (see 4.8.6.1). 3.4.2.2 Average operating force. The average f
31、orce required to actuate the switch shall be in accordance with applicable MS standard or drawing except as specified in 3.5.5 (for low temperature). If no operating force is specified, the average operating force shall be .75 to 3 pounds for maintained positions and 2 to 3.5 pounds for momentary po
32、sitions. Momentary position, on release, shall be self-canceling. The average time required for the switch to return from a momentary contact shall be no more than 1 second (see 4.8.7). 3.5 Environmental. 3.5.1 Corrosion. Switch performance shall not be adversely affected by corrosion when exposed t
33、o 5 percent salt water spray for 144 hours (see 4.8.8). 3.5.2 Fungus. Switch performance shall not be adversely affected by fungus when subjected to the fungus resistance test of ASTM G21 for 90 days (see 4.8.9). 3.5.3 Sand and dust. Grade 2 switches shall not be adversely affected by sand and dust
34、when subjected to test method 110 of MIL-STD-202 for 12 hours (see 4.8.10). 3.5.4 Waterproofness. Grade 1 switch performance shall not be affected after submersion, nor shall the switch show signs of leakage during submersion (see 4.8.11). 3.5.5 Extreme temperature. Switches shall operate in a tempe
35、rature range of -67 2 degrees Fahrenheit (F) -55 1 degree Celsius (C) through 170 2F (77 1C). The material used in the switch body shall not shrink, crack, become brittle or soften. While at -67 2F (-55 1C), the force required to move the switch from any position to any adjacent position shall be no
36、 more than 140 percent of the average operating force previously determined at room temperature (see 4.8 12). 3.5.6 Shock. Switch performance shall not be adversely affected after being subjected to mechanical shocks of 75 gravity units (g) (peak) of sawtooth waveform in both directions along each o
37、f the three major axes. There shall be no spurious opening or closing of circuits during the shock application (see 4.8.13). 3.5.7 Vibration. Switches shall be subjected to vibration testing under electric-load conditions for not less than 1 hour in each of three perpendicular axes. Vibration shall
38、not cause spurious opening or closing of contacts, loosening of parts, noise, wear, or physical distortion to mechanical parts (see 4.8.14). 3.5.8 Endurance. The switch shall evidence no mechanical or electrical failure during or after 10,000 operations while connected to rated resistive and inducti
39、ve loads (see 4.8.15). 3.6 Marking. In addition to any special marking specified on the applicable MS standard or drawing, switches shall be marked in accordance with MIL-STD-130 (see 4.8.1 and 4.8.2). 3.7 Workmanship. Workmanship shall be of the quality to assure a product free of burrs, rust, scra
40、tches, chips, sharp edges, loose or defective connectors, cracked insulation, faulty soldering, or other defects which affect serviceability or appearance (see 4.8.2). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-13735G 5 4. VERIFICATION 4
41、.1 Classification of inspection. The examination and testing of switches shall be classified as follows: a. Qualification inspection (see 4.3). b. Conformance inspection (see 4.5). 4.2 Test equipment and inspection facilities. Test and measuring equipment and inspection facilities of sufficient accu
42、racy, quality, and quantity to permit performance of the required inspection shall be established and maintained by the contractor. The establishment and maintenance of a calibration system to control the accuracy of the measuring and test equipment shall be in accordance with ANSI/NCSL Z540.1, ISO-
43、10012-1, or equivalent system as approved by the qualifying activity. 4.2.1 Additional inspection. Nothing specified herein shall preclude the supplier from taking such additional samples and making such addition inspections as he may deem necessary or desirable to assure conformance of the switches
44、 to this specification. 4.2.2 Government. Acceptance of the switches shall be based upon verification by the Government of the suppliers compliance with the requirements of this specification. The Government may, as its option, repeat any or all of the inspections specified herein. 4.3 Qualification
45、 inspection. For qualification inspection, the manufacturer shall furnish eight specimens of each type, class and grade of switch. The sample specimens shall be representative of the units proposed to be furnished to the Government. Qualification inspection shall be performed at a laboratory accepta
46、ble to the Government on sample units produced with equipment and procedures normally used in production. Qualification inspection shall consist of testing as specified in table I in the order listed. 4.3.1 Sample size. The number of switches to be subjected to qualification inspection shall be as s
47、pecified in table III. 4.4 Failures. One or more failures shall be cause for refusal to grant qualification approval. 4.5 Verification of qualification. a. Design of switch has not been modified (every 12 months). b. Verification of group A lot acceptance (every 12 months) (see 4.6) c. Periodic grou
48、p B inspection (every 36 months) (see 4.7) 4.6 Conformance inspection. Conformance inspection of product for delivery shall consist of group A inspection. 4.6.1 Inspection lot. An inspection lot shall consist of switches of the same specification sheet produced under essentially the same conditions,
49、 and offered for inspection at one time. Similar switches conforming to these requirements but having different circuitry may be combined to form a lot. 4.6.2 Group A inspection. Group A inspection shall consist of the inspections specified in table II. 4.6.2.1 Sample size. Statistical sampling shall be in accordance with table III. For acceptance there shall be zero occurrences of defects. 4.6.2.2 Rejected lots. If an inspection lot is rejected, the lot sh
