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-9395H 3 October 2006 SUPERSEDING MIL-DTL-9395G 30 May 2001 DETAIL SPECIFICATION SWITCHES, PRESSURE, (ABSOLUTE, GAGE, AND DIFFERENTIAL), GENERAL SPECIFICATION FOR This specification is approved for use by
3、all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers the general requirements for absolute, gage, and differential pressure switches (see 6.1). 1.2 Classification. 1.2.1 Type. The type will be identified in accordance with table I. TABLE I. Type Ty
4、pe Switch I Absolute pressure II Gage pressure III Differential pressure 1.2.2 Temperature. 1.2.2.1 High temperature. The high temperature will be in accordance with table II. TABLE II. High temperature Symbol Temperature operating and nonoperating F C B 275 135 C 350 176.6 D 400 204.4 E 500 260 F 6
5、00 315.5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-9395H 2 1.2.2.2 Low temperature. The low temperature will be in accordance with table III. TABLE III. Low temperature. Symbol Temperature operating and nonoperating F C D -65 -53.9 E -8
6、5 -65 F -100 -73.4 1.2.3 Altitude. The altitude will be in accordance with table IV. TABLE IV. Altitude. Symbol Altitude feet Pressure equivalent psia (lbf / in2a) F C A 10,000 10.1 B 20,000 6.8 C 70,000 0.7 D 100,000 0.16 E 150,000 0.021 1.2.4 Shock. The shock will be in accordance with table V. TA
7、BLE V. Shock. Symbol Shock Gs A 50 B 75 C 100 D 500 E High impact 1.2.5 Vibration characteristic. The vibration will be in accordance with table VI. TABLE VI. Vibration. Symbol Type S Sine R RandomProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-D
8、TL-9395H 3 1.2.6 Life. 1.2.6.1 Mechanical life. The mechanical life will be in accordance with table VII. TABLE VII. Mechanical life. Symbol Cycles A 100,000 B 200,000 E 20,000 F 50,000 1.2.6.2 Electrical life. The electrical life will be in accordance with table VIII. TABLE VIII. Electrical life. S
9、ymbol Cycles A 10,000 B 25,000 C 50,000 D 100,000 1.2.7 Acceleration. The acceleration will be in accordance with table IX. TABLE IX. Acceleration. Symbol Gs A 2 B 4 C 8 D 12 E 16 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-9395H 4 1.2.8
10、Pressure pulsation. 1.2.8.1 Pressure pulsation amplitude. The pressure pulsation amplitude will be in accordance with table X in determining the actuation and deactuation points. TABLE X. Pressure pulsation amplitude. Grade Percent steady state pressure A 0 B 2 C 5 D 8 E 10 1.2.8.2 Pressure pulsatio
11、n frequency. The pressure pulsation frequency will be in accordance with table XI. TABLE XI. Pressure pulsation frequency. GradeFrequencyin Hz A 0 B 60 5 C 200 20 D 500 50 E 700 50 1.2.9 Pressure rise. The pressure rise will be in accordance with table XII. TABLE XII. Pressure rise. Grade Pressure r
12、ise rate in psi (lbf/ in2) per second A less than 100 B more than 1000 C 50,000 D 100,000 E 250,000 F 500,000 G 1,000,000 H 1,500,000 I 2,000,000 J 2,500,000 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-9395H 5 2. APPLICABLE DOCUMENTS 2.1
13、General. The documents listed in this section are specified in sections 3 and 4 of this specification. 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 comple
14、teness of this list, document users are cautioned that they must meet all specified requirements of documents cited in sections 3 and 4 of this specification, whether or not they are listed. 2.2 Government documents. 2.2.1 Specifications, standards, and handbooks. The following specifications, stand
15、ards, 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 - Screw-Thread Standards for Federal Services. DEPARTMENT OF DEFENSE SPECIFICATION
16、S MIL-DTL-5541 - Chemical Conversion Coatings on Aluminum and Aluminum Alloy. MIL-R-5757/10 - Relays, Electromagnetic, Hermetically Sealed, DPDT, Low Level, and 2 Amperes. MIL-A-8625 - Anodic Coatings, For Aluminum and Aluminum Alloys. MIL-I-16923 - Insulating Compound, Electrical, Embedding Epoxy.
17、MIL-P-25732 - Packing, Preformed, Petroleum Hydraulic Fluid Resistant, Limited Service at 275F (135C). MIL-DTL-25988 - Rubber, Fluorosilicone Elastomer, Oil-and-Fuel Resistant, Sheets, Strips, Molded Parts, and Extruded Shapes (O-rings, Class 1, Grade 70). MIL-DTL-28786 - Switches, Electrical and Fi
18、ber Optic, Packaging of DEPARTMENT OF DEFENSE STANDARDS MIL-STD-202 - Test Methods for Electronic and Electrical Component Parts. MIL-STD-810 - Environmental Engineering Considerations for Laboratory Tests. MIL-STD-1285 - Marking of Electrical and Electronic Parts. (Copies of these documents are ava
19、ilable online at http:/assist.daps.dla.mil/quicksearch/ or http:/www.assist.daps.dla.mil/ or from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094.) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
20、MIL-DTL-9395H 6 2.3 Non-Government publications. The following documents 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. AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI) NCSL Z540-1 -
21、Calibration Laboratories and Measuring and Test Equipment. (Copies of these documents are available online at http:/dod.nssn.org/search.html or from the American National Standards Institute (ANSI), 25 West 43rd Street, New York, NY 10036-8002, telephone 212-642-4900, fax 212-302-1286.) AMERICAN SOC
22、IETY FOR TESTING AND MATERIALS (ASTM) INTERNATIONAL ASTM-D635 - Standard Test Method for Rate of Burning and/or Extent and Time of Burning of Plastics in a Horizontal Position. ASTM-D5948 - Compounds, Molding, Thermosetting. ASTM-D4066-82 - Nylon Injection and Extrusion Materials (PA). (Copies of th
23、ese documents are available online at http:/www.astm.org or from the ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA, 19428-2959.) INTERNATIONAL ORGANZATIOINS FOR STANDARDS (ISO) ISO 10012-1 - Quality Assurance Requirements for Measuring Equipment - Part 1: Metrologic
24、al Confirmation System for Measuring Equipment. (Copies of these documents are available online at http:/www.nssn.org/search.html or from the American National Standards Institute (ANSI), ), 25 West 43rd Street, New York, NY 10036-8002, telephone 212-642-4900, fax 212-302-1286.) IPC - ASSOCIATION CO
25、NNECTING ELECTRONICS INDUSTRIES J-STD-004 - Soldering Fluxes Requirements for. J-STD-006 - Electronic Grade Solder Alloys and Fluxed and Non-fluxed Solid Solders for Electronic Soldering Applications Requirements for. (Copies of these documents are available online at http:/www.ipc.org or from Assoc
26、iation Connecting Electronics Industries, 3000 Lakeside Drive 309 S, Bannockburn, Illinois, 60015.) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-9395H 7 SOCIETY OF AUTOMOTIVE ENGINEERS (SAE) INTERNATIONAL SAE-AS50861 - Wire, Electric, Poly
27、vinyl Chloride Insulated, Copper or Copper Alloy. SAE-AMS-P-5315 - Butadiene Acrylonitrile (NBR) Rubber for Fuel Resistant Seals 60 to 70. SAE-AMS-R-6855 - Elastomer, Synthetic, Sheets, Strips, Molded or Extruded Shapes. SAE-AS7928 - Terminals, Lug Splices, Conductor, Crimp Style, Copper, General Sp
28、ecification for. SAE-AS8879 - Screw Threads UNJ Profile, Inch Controlled Radius Root with Increased Minor Diameter. (Copies of these documents are available online at http:/www.sae.org or from Society of Automotive Engineers, 400 Commonwealth Drive, Warrendale, Pennsylvania, 15096-0001) 2.4 Order of
29、 precedence. In the event of a conflict between the text of this document and the references cited herein (except for related specification sheets), the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption h
30、as been obtained. 3. REQUIREMENTS 3.1 Specification sheets. The individual item requirements shall be as specified herein and in accordance with the applicable specification sheets. In the event of any conflict between the requirements of this specification and the specification sheets, the latter s
31、hall govern (see 6.2). 3.1.1 Switch categories. Switches furnished under this specification shall be category I or II as defined herein. 3.1.1.1 Category I. Switches completely defined by a military specification sheet. 3.1.1.2 Category II. Switches are the same as category I except for minor differ
32、ences such as terminations, connectors, pressure ports, mounting means, pressure settings, or minor body dimensions which do not change the basic design or construction of the qualified switch. Category II switches shall be acquired from a source listed on the applicable QPL for the particular simil
33、ar product in category I. Category II switches are non standard. Qualification and acceptance testing shall be limited to verification of requirements in excess of the applicable specification sheet. 3.2 Qualification. Switches furnished under this specification shall be products which are qualified
34、 for listing on the QPL at the time set for opening of bids (see 4.5 and 6.3). 3.3 Material. Material shall be as specified herein. When a definite material is not specified, a suitable material shall be used which enables the switches to conform to the performance requirements of this specification
35、. Acceptance or approval of any constituent material shall not be construed as a guaranty of the acceptance of the finished product (see 4.10.1). 3.3.1 Fungus-resistance. All materials shall be nonfungus nutrient in accordance with MIL-STD-810, Requirement 4. 3.3.2 Metals. All metal parts, other tha
36、n current-carrying parts, shall be of corrosion-resistant material, or shall be suitably protected to resist corrosion. Paint is not acceptable for corrosion protection. Brass, copper, cadmium, or zinc shall not be used in contact with fuel. Cadmium or zinc shall not be used in contact with lube oil
37、 or hydraulic oil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-9395H 8 3.3.2.1 Dissimilar metals. When dissimilar metals are used in intimate contact with each other, protection against electrolysis and corrosion shall be provided. The us
38、e of dissimilar metals which, in contact, tend toward active electrolytic corrosion is not acceptable. However, metal plating or metal spraying of dissimilar base metals to provide similar or suitable abutting surfaces is permitted. The use of dissimilar metals separated by a suitable insulating mat
39、erial is also permitted. Dissimilar metals and compatible couples are defined in 6.5. 3.3.2.2 Magnesium. Magnesium and magnesium alloys shall not be used. 3.3.2.3 Aluminum. Aluminum and aluminum alloys shall be suitably protected against corrosion. When anodized, it shall be in accordance with MIL-A
40、-8625. Internal parts not in contact with media or subject to wear may be chemically treated in accordance with MIL-DTL-5541. 3.3.2.4 Solder. Solder shall have a minimum melting point of 100F above the maximum temperature rating of the pressure switch and shall conform to J-STD-006. Where solder is
41、employed, flux shall be in accordance with J-STD-004. When stainless steel is used, corrosive flux may be used providing the device is cleaned and the flux is neutralized prior to final assembly. 3.3.2.5 Pure tin. The use of pure tin, as an underplate or final finish, is prohibited both internally a
42、nd externally. Tin content of the switch components and solder shall not exceed 97 percent, by mass. Tin shall be alloyed with a minimum of 3 percent lead, by mass (see 6.6). 3.3.3 Nonmetals. Switches shall not be adversely affected by weathering or aircraft, missile, and spacecraft fluids at the te
43、mperature specified for the applicable switch. 3.3.3.1 Plastic. Unless otherwise specified (see 3.1), thermosetting plastics shall be in accordance with ASTM-D5948; however, cotton-or-wood-flour-filled materials shall not be used. Thermoplastic shall not be used for the switchcase or cover. When use
44、d for noncase material, thermoplastics shall be in accordance with type I of ASTM-D4066-82. The plastic material used shall be self-extinguishing when tested in accordance with ASTM-D635, as applicable, to the thinnest section of the material used. The self-extinguishing requirement applies to all m
45、aterials for external parts and enclosures regardless of whether the material used is acquired to a military specification. 3.3.3.2 Ceramic. Ceramic insulating material shall meet or exceed the following characteristics: Dielectric loss index: .016 Maximum Average Dielectric strength: 180 to 199 vol
46、ts/mil Average flexural strength: 4,000 to 11,900 lbs/sq in 3.3.3.3 Potting compounds. Potting compounds used in contact with the atmosphere shall be in accordance with MIL-I-16923 and shall be compatible with the design requirements of the switch. 3.3.3.4 Rubber materials. Rubber materials used in
47、contact with fuel and lubricating oil shall conform to SAE-AMS-P-5315, SAE-AMS-R-6855, or MIL-DTL-25988. Rubber materials used in contact with hydraulic oil shall conform to MIL-P-25732. 3.3.4 Design and construction. Switches shall be of the design, construction, and physical dimensions specified (
48、see 3.1). 3.4.1 Electrical ratings. Electrical ratings shall be as specified (see 3.1). 3.4.2 Case. The case shall be unsealed, watertight, or hermetically sealed as specified (see 3.1). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-9395H 9
49、 3.4.3 Chambers. The electrical pressure, and reference chambers, shall be unsealed, watertight, or hermetically sealed as specified (see 3.1). 3.4.4 Tamperproof calibration. Unless otherwise specified (see 3.1), the switches shall be sealed so that any tampering with the calibration after final adjustment by the manufacturer shall requ
