1、AMSC N/A FSC 5935 DETAIL SPECIFICATION CONNECTORS, ELECTRICAL, CIRCULAR, THREADED, HIGH SHOCK, HIGH DENSITY, SHIPBOARD, CLASS D, GENERAL SPECIFICATION FOR This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification cover
2、s circular electrical connectors with removable crimp type, front release contacts. These connectors are for use with jacketed cables in shipboard applications. 1.1.1 Temperature. These connectors are rated for specified operation within a temperature range of -55 C (-67 F) to 200 C (392 F). The upp
3、er temperature is the maximum internal hot-spot temperature resulting from any combination of electrical load and ambient conditions. 1.1.1.1 Insulation resistance. Insulation resistance limits vary with temperature (see figure 1). 1.1.1.2 Service life. Service life varies with temperature (see figu
4、re 2 and table I). 1.2 Classification. 1.2.1 Part or Identifying Number (PIN). The connector PIN for qualified connectors procured in accordance with this specification is the letter “M”, the basic number of the applicable specification sheet and the applicable alphanumeric characters formulated as
5、in the following examples: M28840/XX X X X X X X Basic PIN (see 1.2.1) Class code (see 1.2.1.1) Shell size (see 1.2.1.2) Insert arrangement designator (see 1.2.1.3) Backshell size designator (see 1.2.1.4) Contact style (see 1.2.1.5) Key position (see 1.2.1.6) MIL-DTL-28840D 7 November 2013 SUPERSEDI
6、NG MIL-DTL-28840C 13 May 2009 INCH-POUND Comments, suggestions, or questions on this document should be addressed to DLA Land and Maritime, ATTN: VAI, P.O. Box 3990, Columbus OH 43218-3990 or emailed to circularconnectordla.mil. Since contact information can change, you may want to verify the curren
7、cy of this address information using the ASSIST Online database at https:/assist.dla.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-28840D 2 1.2.1.1 Class code. The class of the connector is as specified in table I. TABLE I. Connector c
8、lasses physical characteristics. Class code Class Feature Hot spot temperature (C) Service life Insert sealing material Shell and coupling rings Fluid resistance Material Finish A D High impact shock 125 200 1/ 20 yrs. 1000 hrs. Fluorosilicone Wrought aluminum Cadmium olive drab over nickel Complete
9、 B DS High impact shock Corrosion resistant steel 316 Cadmium black C DJ High impact shock with backshell connector assembly Wrought aluminum Cadmium olive drab over nickel E DJS Corrosion resistant steel 316 Cadmium black N TS High impact shock Stainless steel Nickel-fluorocarbon polymer non-reflec
10、tive V TJS High impact shock with backshell connector assembly R ZS High impact shock Zinc nickel black non-reflective X ZJS High impact shock with backshell connector assembly F P High impact shock Wrought aluminum Pure electro deposited aluminum non-reflective G PJ High impact shock with backshell
11、 connector assembly L T High impact Shock Nickel-fluorocarbon polymer non-reflective M TJ High impact shock with backshell connector assembly S Z High impact shock Zinc nickel black non-reflective U ZJ High impact shock with backshell connector assembly 1/ Hot spot test requirement for inserts and s
12、eals is 200C. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-28840D 3 1.2.1.2 Shell sizes. The shell size is as specified in table II. TABLE II. Shell sizes. Designator A B C D E F G H J Shell sizes 11 13 15 17 19 23 25 29 33 1.2.1.3 Insert
13、arrangement. The insert arrangement designator is a single digit indicating the insert pattern in accordance with the applicable insert arrangement in accordance with MIL-STD-1698. 1.2.1.4 Backshell size designator. The backshell size designator, identified by the letter A, B, C, or D, will be in ac
14、cordance with the applicable specification sheets. 1.2.1.5 Contact styles. The following designators identify the various contact styles. a. Connectors ordered with standard contacts in accordance with MIL-STD-1698. P - Pin contacts -20-22 (see SAE-AS39029/83-450) S - Socket contacts -20-22 (see SAE
15、-AS39029/84-452) D - Pin contacts -20-28 (see SAE-AS39029/83-451) E - Socket contacts -20-28 (see SAE-AS39029/84-453) F - Pin contacts -20-20 (see SAE-AS39029/83-508) G - Socket contacts -20-20 (see SAE-AS39029/84-509) The P, S, D, E, F, and G designators indicate that the connectors will be used wi
16、th full complements of the applicable standard contacts in accordance with MIL-STD-1698. The connectors that accommodate crimp removable contacts ( P, S, D, E, F, or G) may be ordered without standard contacts by adding an appropriate note on the purchase order. The connector PIN and the marking req
17、uirements remain unchanged. b. Connectors used with other than standard contacts in accordance with MIL-STD-1698. A - Less pin contacts B - Less socket contacts The A or B designators indicate that the connectors will be used with other than standard contacts in accordance with MIL-STD-1698 (example
18、: shielded, coaxial, thermocouple, fiber optic contacts). The A or B designators are part of the connector PIN and are marked on the connector. The connector will be supplied without contacts. The contacts that will be used with the connectors should be ordered separately (see 3.4.1.1.1 and 6.2). NO
19、TE: When A and B designators are used, the requirements stated herein may not be met. 1.2.1.6 Key position. The key or keyway position is identified by the appropriate number 1, 2, 3, 4, 5 or 6 as specified on figure 3. 1.2.2 Coupling. Connectors have a threaded coupling as specified on figures 8 an
20、d 9. 1.2.3 Receptacle mounting. Receptacle mounting is designed as either flange or jam nut. 1.3 Wire range accommodations. The wire ranges as specified in table III are accommodated by the contacts as indicated. Provided by IHSNot for ResaleNo reproduction or networking permitted without license fr
21、om IHS-,-,-MIL-DTL-28840D 4 FIGURE 1. Minimum insulation resistance vs. hot spot temperature. FIGURE 2. Service life vs. hot spot temperature. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-28840D 5 TABLE III. Wire range accommodations. 1/ 2
22、/ Contact size Wire size Outside diameter (OD) of finished wire (inch) 3/ 4/ Minimum Maximum 20-20 24 22 20 .040 (1.02) .070 (1.78) 20-22 26 24 22 20-28 32 30 28 1/ Dimensions are in inches. 2/ Metric equivalents (in millimeters) are given for information only. 3/ To obtain sealing, wires must be bu
23、ilt up to finished wire diameter (see 6.1.1). 4/ In accordance with MIL-DTL-24643 and MIL-DTL-16878. 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this section are specified in sections 3, 4, or 5 of this specification. This section does not include documents cited in other sections o
24、f 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 requirements documents cited in sections 3, 4, or 5 of this specification, whether o
25、r not they are listed. 2.2 Government documents. 2.2.1 Specifications, standards, and handbooks. The following specifications, 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 solici
26、tation or contract. FEDERAL STANDARD FED-STD-H28 - Screw-Thread Standards for Federal Services. (Copies of these documents are available online at http:/quicksearch.dla.mil or from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094.) Provided by IHS
27、Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-28840D 6 DEPARTMENT OF DEFENSE SPECIFICATIONS MIL-S-901 - Shock Tests, H.I. (High-Impact), Shipboard Machinery, Equipment and Systems, Requirements for. MIL-DTL-24643 - Cables, Electric, Low Smoke Halogen-Free
28、, for Shipboard Use, General Specification for. MIL-DTL-16878 - Wire, Electrical, Insulated, General Specification for. MIL-DTL-83488 - Coating, Aluminum, High Purity. MIL-I-81969/33 - Installing and Removal Tools, Connector, Electrical Contact, Type I, Class 1, Composition A. MIL-I-81969/3 - Instal
29、ling and Removal Tools, Connector, Electrical Contact, Type II, Class 1, Composition A. MS3186 - Connector, Mounting to Connectors, Mounting Nuts, Plain Hexagon. MS27488 - Plug, End Seal, Electrical Connector. (See supplement 1 for list of specification sheets.) (Copies of these documents are availa
30、ble online at http:/quicksearch.dla.mil or from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094.) DEPARTMENT OF DEFENSE STANDARDS MIL-STD-167-1 - Mechanical Vibrations of Shipboard Equipment (Type I - Environmental and Type II - Internally Excite
31、d). MIL-STD-202 - Test Methods for Electronic and Electric Component Parts. MIL-STD-790 - Established Reliability and High Reliability Qualified Products List (QPL) Systems for Electrical, Electronic, and Fiber Optic Parts Specifications. MIL-STD-810 - Environmental Engineering Considerations and La
32、boratory Tests. MIL-STD-889 - Dissimilar Metals. MIL-STD-1285 - Marking of Electrical and Electronic Parts. MIL-STD-1373 - Screw Thread, Modified, 60 Degree Stub, Double. MIL-STD-1698 - Insert Arrangements for MIL-DTL-28840 High Density, High Shock Circular Connectors. (Copies of these documents are
33、 available online at http:/quicksearch.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 extent specified herein. Unless otherwise specif
34、ied, the issues of these documents are those cited in the solicitation or contract. AEROSPACE INDUSTRIES ASSOCIATION (AIA) NASM20995 - Wire, Safety or Lock. (Copies of these documents are available online at http:/www.aia- or from the Aerospace Industries Association, 1000 Wilson Boulevard, Suite 17
35、00, Arlington, VA 22209-3901). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-28840D 7 ASTM INTERNATIONAL ASTM A276 - Standard Specification for Stainless Steel Bars and Shapes. ASTM A342/A342M - Standard Test Methods for Permeability of Fee
36、bly Magnetic Materials. ASTM A473 - Standard Specification for Stainless Steel Forgings. ASTM A580/A580M - Standard Specification for Stainless Steel Wire. ASTM B841 - Standard Specification for Electrodeposited Coatings of Zinc Nickel. (Copies of these documents are available at http:/www.astm.org
37、or from ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, Pennsylvania 19428-2959.) ELECTRONIC COMPONENTS INDUSTRY ASSOCIATION (ECIA) EIA-364 - Electrical Connector/Socket Test Procedures including Environmental Classifications. EIA-364-09 - Durability Test Procedure for Ele
38、ctrical Connectors and Contacts. EIA-364-20 - Withstanding Voltage Test Procedure for Electrical Connectors, Sockets and Coaxial Contacts. EIA/ECA-364-21 - Insulation Resistance Test Procedure for Electrical Connectors, Sockets and Coaxial Contacts. EIA/ECA-364-26 - Salt Spray Test Procedure for Ele
39、ctrical Connectors, Contacts and Sockets. EIA-364-28 - Vibration Test Procedure for Electrical Connectors and Sockets. EIA-364-31 - Humidity Test Procedure for Electrical Connectors and Sockets. EIA-364-35 - Insert Retention Test Procedure for Electrical Connectors. EIA-364-42 - Impact Test Procedur
40、e for Electrical Connectors. (Copies of these documents are available online at http:/eciaonline.org or from the Electronic Components Industry Association (ECIA), 1111 Alderman Dr., Suite 400, Alpharetta, GA 30005-4175.) INTERNATIONAL ORGANIZATION FOR STANDARDIZATION (ISO) ISO 17025 - General Requi
41、rements for the Competence of Testing and Calibration Laboratories. (Copies of these documents are available online at www.ansi.org or from the ANSI Customer Service Department, 25 W. 43rdStreet, 4thFloor, New York, NY 10036.) NCSL INTERNATIONAL NCSL Z540.3 - Requirements for the Calibration of Meas
42、uring and Test Equipment. (Copies of these documents are available online at http:/www.ncsli.org or from NCSL International, 2995 Wilderness Place, Suite 107, Boulder, Colorado 80301-5404.) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-2884
43、0D 8 SAE INTERNATIONAL SAE-AMS-QQ-P-416 - Plating, Cadmium (Electrodeposited). SAE-AMS2454 - Plating, Electroless Nickel, Codeposited with Polytetrafluoroethylene (PTFE). SAE-AIR4789 - Aerospace Information Report on Evaluating Corrosion Testing of Electrical Connectors and Accessories for the Purpo
44、se of Qualification. SAE-AS22520 - Crimping Tools, Wire Termination, General Specification for. SAE-AS39029 - Contacts, Electrical Connector, General Specification for. SAE-AS39029/83 - Contacts, Electrical Connector, Pin, Crimp Removable (for MIL-DTL-28840 Connectors). SAE-AS39029/84 - Contact, Ele
45、ctrical Connector, Socket, Crimp Removable (for MIL-DTL-28840 Connectors). (Copies of these documents are available at http:/www.sae.org or SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, and Tel: 877-606-7323 (inside USA and Canada) or 724-776-4970 (outside USA), or email: mai
46、lto:customerservicesae.org.) TECHAMERICA TechAmerica EIA-557 - Statistical Process Control Systems. (Copies of these documents are available online at http:/www.techamerica.org or from TechAmerica, 601 Pennsylvania Avenue, NW, North Building, Suite 600, Washington, DC 20004.) 2.4 Order of precedence
47、. Unless otherwise noted herein or in the contract, 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 re
48、gulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 Specification sheets. The individual item requirements shall be as specified herein and in accordance with the applicable specification sheet. In the event of conflict between the requirements of this specification and the specification sheet, the latter shall govern. 3.2 Qualification. The connectors and accessories furnished under this specification shall be products that are authorized by the qualifying activity fo
