1、I INCH-POUND I MIL-C-28754D 21 APRIL 1989 SUPERSEDING 13 DECEMBER 1982 (See 6.10) MIL-C-28754C MILITARY SPECIFICATION CONNECTORS, ELECTRICAL, MODULAR, . AND COMPONENT PARTS GENERAL SPECIFICATION FOR This specification is approved for use by al 1 Departments and Agencies of the Department of Defense.
2、 L 1. .SCOPE 1.1 Scope. This specification covers the general requirements for backplane connectors, module connectors, cable connectors, and their component parts. Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document shoul
3、d be addressed to: Commander, Naval Sea Systems Command, SEA 5523, Department of the Navy, Washington, D.C., 20362-5101 by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. AMSC N/A FSC 5935 DISTRIBUTION STATEMEN
4、T A. Approved for public release; distribution is unlimited. ._ THIS DOCUMENT CONTAINS 9 i PAGES. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1.2 Classification. 1.2.1 Types. Connectors and assembl ies covered by this specification are of the fol
5、lowing types: Type III - Type IV - Typ V - Al uminum base plate assembly with contact and bushing set. Module blade connector assembly on 100 mil grid. Cable connector assembly on 100 mil grid, with a dielectric block containing crimp or solder blade contacts. 1.2.2 Component parts. In addition, thi
6、s specification covers component parts utilized in type III through type V assemblies, or in re1 ated appl i cations. . 1- II 2. APPLICABLE DOCUMENTS 2.1 Government documents. MIL-C-28754D 57 m 7777706 0032660 7 W MIL-C-28754D I ,- /- , 2.1.1 Specifications and standards. The following specification
7、s and standards form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those listed in the issue of the Department of Defense Index of Specifications and Standards (DODISS) and supplement thereto, cited in the solicitation (see 6.2)
8、. SPECIFICATIONS FEDERAL L-P-410 - Plastic, Polyamide (Nylon), Rigid, Rods, Tubes, F1 ats, Molded and Cast Parts. Thermosetting. Shapes, Tube and Wire Extruded; General Specification for. W i re, Extruded. L-P-589 - Plastic, Sheet, Rod and Tube, Laminated, QQ-A-200 - Al uminum A1 1 oy, Bar, Rod, Sha
9、pes, Structural QQ-A-200/8 - Aluminum Alley 6061 Bar, Rod, Shapes, Tube and 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-QQ-A-225 QQ-A-225/1 QQ-A-225/6 QQ-A-225/8 QQ-A-225/9 QQ-A-250 QQ-A-250/8 QQ-A-250/9 QQ-A-250/11 QQ-A-591 QQ-B-613 QQ-B-626 Q
10、Q-8-750 QQ-C-530 QQ-C-533 QQ-N-290 QQ-P-35 QQ-S-635 QQ-S-763 QQ-5-766 MIL-C-28754D Aluminum and Al uminum Alloy Bar, Rod, Wire or Special Shapes; Rolled, Drawn or Cold Finished. Al uminum Alloy Bar, Rod, and Wire, Rolled, Drawn, or Cold Finished, 1100. Aluminum Al 1 oy Bar, Rod, and Wire, Rol 1 ed,
11、Drawn, or Cold Finished, 2024. Al umi num Al 1 oy 6061 Bar, Rod, Wire and Special Shapes, Rolled, Drawn or Cold Finished. Aluminum Alloy 7075 Bar, Rod, Wire, and Special Shapes, Rol 1 ed, Drawn or Cold Finished. Aluminum and Al uminum Alloy Pl ate and Sheet: General Speci fi cat i on For. Aluminum A
12、lloy, 5052, Pl ate and Sheet. Al uminum Alloy 5456, Pl ate and Sheet. Aluminum Alloy 6061 , Pl ate and Sheet. Al uminum Alloy Die Castings. Brass, beaded and Nonleaded: F1 at Products (Pl ate, Bar, Sheet and Strip). Brass, Leaded and Non1 eaded: Rod, Shapes, Forgings and F1 at Products with Finished
13、 Edges (Bar and Strip). Bronze, Phosphor; Bar, Plate, Rod, Sheet, Strip, F1 at Wire, and Structural and Special Shaped Sect ions. Copper-Beryl 1 i um Al 1 oy Bar, Rod, and Wire (Copper Al 1 oy Numbers 172 and 173). Copper-beryl1 i um Al 1 oy Strip (Copper Al 1 oy Numbers 170 and 172) . Nickel Pl at
14、i ng (El ectrodeposi ted) . Passivation Treatments for Corrosion-resisting - Steel. Steel Pl ate, Carbon. Steel Bars, Wire, Shapes, and Forgings, Corrosion Resisting. Steel, Stainless and Heat Resisting, Alloys, Plate, Sheet, and Strip. Provided by IHSNot for ResaleNo reproduction or networking perm
15、itted without license from IHS-,-,-MILITARY MIL-M-14 - Molding P1 astics and Molded P1 astic Parts, Thermo- setting . Al umi num Al 1 oys . MIL-C-5541 - Chemical Conversion Coatings on Al uminum and MIL-A-8625 - Anodic Coatings, for Aluminum and Aluminum Alloys. MIL-P-13949 - Plastic Sheet, Laminate
16、d, Metal Clad, (For Printed Wi ri ng Boards), General Specification For. MIL-F-14072 - Finishes For Ground Electronic Equipment. MIL-1-43553 - Ink, Marking, Epoxy Base. MIL-G-45204 - Gold Plating, Electrodeposited. MIL-C-55330 - Connectors, Electrical and Fiber Optic, Packaging of. (See supplement 1
17、 for list of associated specification sheets.) STANDARDS FEDERAL FED-STD-H28 - FED-STD-406 - FED-STD-595 - MILITARY MIL-STD-202 - MI L - STD-889 - MIL-STB-1130 - MIL-STD-1285 - MIL-STD-1344 - MIL-STD-45662 - MS 14033 - Screw-Thread Standards for Federal Services Plastics: Methods of Testing. Col ors
18、. Test Methods for Electronic and Electrical Component Parts. Di ssirni 1 ar Metal s. Connections, Electrical, Solderless Wrapped. Marking OP Electrical and Electronic Parts. Test Methods for El eetrical Connectors. Cal i bration Systems Requirements. Grid Patterns for Solderless Wrapped Electrical
19、Connectors. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-28754D II O . (Unless otherwise indicated, copies of federal and military specifications, standards, and other documents are available from the Naval Publications and Forms Center, (
20、ATTN: NPODS), 5801 Tabor Avenue, Philadelphia, PA 19120-5099.) 2.1.2 Other Government pub1 ications. The following other Government publications form a part of this document to the extent specified herein. Unless otherwise specified, the issues-shall be those in effect on the date of the solicitatio
21、n. PUBLICATIONS SD- 6 - Provisions Governing qualification. (Copies of this publication are available from the Naval Publications and Forms Center, 5801 Tabor Avenue, Philadelphia, PA 19120-5099.) 2.2 Non-Government publications. The following documents form a part of this document to the extent spe
22、cified herein. Unless otherwise specified, the issues of the documents which are DOD adopted are those listed in the issue of the.DODISS cited in the solicitation. Unless otherwise specified, the issues of documents not listed in the DODISS are the issues of the documents cited in the solicitation (
23、see 6.2). AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI) Y 14.5 - Dimensioning and Tolerancing; Errata. (DOD B 46.1 - Surface Texture (Surface Roughness, Waviness and Adopted) Lay). (DOO Adopted) (Application for copies should be addressed to the American National Standards Institute, 1430 Broadway, N
24、ew York, NY 10018.) AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) A 582 - Free Machin Steel Bars, Adopted) ing Stainless and Heat Resisting Hot-Rolled or Cold-Finished. (DOD 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A 484/A 484M B 122 B 1
25、40 B 209 B 4066 MIL-C-28754D - Standard Specification for General Requirements for Stainless and Heat-Resisting Bars, Eli 1 lets and Forgings. (DQD Adopted) - Standard Specification for Copper-Nickel -Tin Alloy, Copper-Nickel-Zinc Alloy (Nickel Silver), and Copper-Nickel Alloy Plate, Sheet, Strip, a
26、nd Rolled Bar. (DOB Adopted) - Copper-Zinc-Lead (Leaded Red Brass or Hardware Bronze) Rod, Bars and Shapes, specification for. (DOD Adopted) A1 umi num-al 1 oy Sheet and Pl ate. Extrusion Materials (PA). (DO8 Adopted) Standard Specification for Aluminum and - Standard specification for Nylon Injecti
27、on and (Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) ELECTRONIC INDUSTRIES ASSOCIATION (EIA) 364- 11 - Test Procedure No. 11, Resistanceto Solvents, Test Procedures for Electrical Connectors. (Application for
28、 copies should be addressed to the Electronic Industries Association, 2001 Eye Street, HW, Washington DC 20006. 2.3 Order of precedence. In the event of a conflict between the text of this document and the references cited herein (except for related associated detail specifications, specification sh
29、eets, or MS standards), the text of this document takes precedence. Nothing in this document, however, supersedes appl icabl e 1 aws and regulations unless a specific exemption has been obtained. c 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.
30、 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 any conflict between the requirements of this specification and the specification sheet, the latter shall govern. (If a spe
31、cific requirement specified herein is not required for an item, it shall be so indicated on the specification sheet; for example, “Shock - N/A.“) 3.2 Qualification. Connectors and accessories furnished under this specification shall be products which are authorized by the qualifying activity for lis
32、ting on the applicable qualified products list at the time of award of contract (see 4.5 and 6.3). 3.3 Materi al . The materi al for each part shall be as specified herein. However, when a definite material is not specified, a material shall be used which will enable the connectors and accessories t
33、o meet the performance requirements. Acceptance or approval of any constituent material shall not be construed as a guarantee of the acceptance of the finished product. 3.3.1 Metals. 3.3.1.1 Metal parts. Al 1 metal parts (other than current carrying . parts) exposed to environmental conditions shall
34、 be of a corrosion- resistant material or shall be plated or chemically coated to resist corrosion during service life. f 3.3.1.2 Dissimilar metals. Where dissimilar metals are used in intimate contact with each other, protection against electrolysis and corrosion shall be provided. Dissimilar metal
35、s shall be as defined in MIL-STD-889. Dissimilar metals such as brass, copper, or steel (except corrosion-reslsting steel, passivated in accordance with 3.3.1.3) shall not be used in intimate contact with aluminum or aluminum alloys. However, spraying, coating, or plating of dissimilar base metals t
36、o provide similar abutting surfaces is permitted. See 6.7 for selection of compatible coup1 es. 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-28754D 3.3.1.3 Corrosion resisting steel. Where applicable, corrosion resisting steel shall be 300
37、 series, low magnetic permeability in accordance with ASTM A 582, QQ-S-635, QQ-S-763, or Q$-S-766, (see 3.1) and passivated in accordance with QQ-P-35 or to finish E300 as specified in MIL-F-14072. 3.3.2 Base pl ate. When appl icable the metal base pl ate for type II I connectors shall be aluminum-a
38、lloy-skeet materlal In accordance with QQ-A-250/8 or QQ-A-25Q/ll (see 3.1 and 3.4). 3.3.2.1 Base plate finish. The aluminum base plate shall be anodized in accordance with MIL-A-8625, or chemically treated in accordance with MIL-C-5541. 3.3.3 Insulation (dielectric). 3.3.3.1 pe III). The insulator b
39、ushings for type I II connectors shall be polyamide (nylon) in accordance with L-P-410 or PAlll of ASTM B 4066. The material shall be self-extinguishing in accordance with method 2Q2l of FED-STB-406. 3.3.3.2 Connector bodies (used on types IV and V). be glass-fiber-filled diallyl phthalate in accord
40、ance W type GDI-30F of MIL-“14 (see 3.1). The color shall be 3.3.4 Contacts. 3.3.4.1 Contact design and construction. Contacts shall be of the design, construction and physical dimensions specified (see 3.1). 3.3.4.2 Contact materials. Type III female contacts shall be made Prom (d) . Mal e blade ty
41、pe II I contacts shall be made from (a), (b), or (c). Wrappost grounding contact for type III connectors shall be made from (e). All other contacts (types IV and V) shall be one of the following materi al s (see 3.1) : (a) Phosphor bronze alloy as specified in QQ-8-750, composition A, half hard. 8 P
42、 Connectors shall ith type SDG-F or green or bl ack. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-flIL-C-ZB754D 57 W 7771906 0032667 I MIL-C-28754D (b) Cadmi um copper al 1 oy, CABRA (Copper and Brass Association), No 162, in accordance with the f
43、ollowing requirements: (1) 99.1 percent copper and 0.9 percent cadmium. (2) Conductivity, 80 percent. (3) Tensile strength of 55,000 to 65,000 pounds per square inch. (c) ASTM -D 140, al 1 oy B, ha1 f hard 1 eaded red brass (hardware bronze), as specified in QQ-8-626 alloy 360 or QQ-B-613, compositi
44、on 260. (d) Beryllium copper as specified in QQ-C-533, minimum 311 Knoop hardness. (e) Beryllium copper as specified in QQ-C-530, minimum 192 Knoop hardness. (f) Copper alloy sheet, UNS number C72500 in accordance with ASTM B 122. 3.3.4.3 Contact plating. The contacts shall be plated as specified in
45、 3.3.4.3.1 and 3.3.4.3.2. 3.3.4.3.1 Contact plating (see 3.1). All contacts shall be gold plated in accordance with type I I, grade C, cl ass 1 of MIL-G-45204 to a thickness of 50 microinches minimum. Contacts shall have a minimum nickel underpl ating of 50 microinches in accordance with QQ-N-290, c
46、lass 1. Localized finish specified by individual specification sheet. 3.3.4.3.2 Localized finish. When specified in the individual specification sheet, a localized finish may be used as an alternate to the overallplating specified in 3.3.4.3.1 (see 3.1). 9 Provided by IHSNot for ResaleNo reproductio
47、n or networking permitted without license from IHS-,-,- MIL-C-28754B 3.3.5 ype V). 3.3.5.1 Housing and cover. The housing and cover shall be either die cast al uminum in accordance with QQ-A-591, extruded al uminum in accordance with QQ-A-200/8, or sheet aluminum in accordance with QQ-A-250/8 or QQ-
48、A-250/9. The type of aluminum used shall be suitable for the manufacturing technique employed. 3.3.5.2 Housinginish. The housing and cover shall be anodized in accordance with MIL-8-8625. The basis metal shall be mechanically prefinished before anodizing to remove surface imperfections or roughness,
49、 and to assure uniformity of the finished surface. Minimum depth of anodic surface treatment shall be 0.0004 inch (0.010 mm). 3.3.5.3 j(see 3.1). The housing and cover finish shall be black within the col or range establ i shed by color chips 34052, 35042, 36076, 36081, 37038, and 37056 sf FED-STB-595 (see 6.2). Where red is specified, the color range shall be established by color chips 1130
