DLA MIL-DTL-6839 E-2011 INDICATOR POSITION LANDING GEAR.pdf
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1、Comments, suggestions, or questions on this document should be addressed to Defense Logistics Agency - Aviation, ATTN: DLA Aviation-VEB, 8000 Jefferson Davis Highway, Richmond, VA 23297-5616 or e-mailed to STDZNMGTdla.mil. Since contact information can change, you may want to verify the currency of
2、this address information using the ASSIST database at https:/assist.daps.dla.mil/. AMSC N/A FSC 6610 INCH-POUND MIL-DTL-6839E 22 July 2011 SUPERSEDING MIL-DTL-6839D 30 October 2007 DETAIL SPECIFICATION INDICATOR, POSITION, LANDING GEAR Inactive for new design after 2 March 1999. This specification i
3、s approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers requirements for individual 28-volt direct current (VDC) electrical landing gear position indicators. 1.2 Classification. The landing gear position indicators are of the fol
4、lowing types as specified (see 6.2). Type I - Lusterless white dial markings (MS27403-1) Type II - Fluorescent luminescent dial markings (MS27403-2) 1.3 Part or identifying number (PIN). The PIN to be used for landing gear position indicators acquired to this specification is shown in MS27403. MS 27
5、403 - X 1 = Type I - Lusterless white dial markings 2 = Type II - Fluorescent luminescent dial markings Specification number Prefix for military specification Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-6839E 2 2. APPLICABLE DOCUMENTS 2.1
6、 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 compl
7、eteness of this list, document users are cautioned that they must meet all specified requirements of the documents cited in sections 3 and 4 of this specification, whether or not they are listed. 2.2 Government documents. 2.2.1 Specifications and standards. The following specifications and standards
8、 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-595/37875 - Miscellaneous, Flat or Lusterless FED-STD-595/37038 - Miscellaneous, Flat or Lusterless DEPAR
9、TMENT OF DEFENSE SPECIFICATIONS MIL-DTL-5541 - Chemical Conversion Coatings on Aluminum and Aluminum Alloys. MIL-S-7742 - Screw Threads, Standard, Optimum Selected Series: General Specification for. MIL-A-8625 - Anodic Coatings for Aluminum and Aluminum Alloys. MS27403 - Indicator, Position, Landing
10、 Gear, 28 Volt DC. MS33558 - Numerals and Letters, Aircraft Instrument Dial, Standard Form of. MIL-DTL-83488 - Coating, Aluminum, High Purity. DEPARTMENT OF DEFENSE STANDARDS MIL-STD-130 - Identification Marking of U.S. Military Property. MIL-STD-810 - Environmental Engineering Considerations and La
11、boratory Tests. MIL-STD-889 - Dissimilar Metals. MIL-STD-31000 - Technical Data Packages. (Copies of these documents are available at https:/assist.daps.dla.mil/ or from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094.) Provided by IHSNot for Res
12、aleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-6839E 3 2.2.2 Other government documents and drawings. The following other government documents and drawings form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these do
13、cuments are those cited in the solicitation or contract. STANDARDIZATION DOCUMENTS SD-6 - Provisions Governing Qualification. (Copies of this document are available at https:/assist.daps.dla.mil/ or from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111
14、-5094.) 2.3 Order of precedence. 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, su
15、persedes applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 Specification sheet. 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 requireme
16、nts of this specification and the specification sheet, the latter shall govern. 3.2 Qualification. Landing gear position indicators furnished under this specification shall be products that are authorized by the qualifying activity for listing on the applicable qualified products list before contrac
17、t award (see 4.3 and 6.3). 3.3 Standard parts. Except as allowed in 3.4, military standard (MS) or Air Force/Navy (AN) standard parts shall be used where they suit the purpose. They shall be identified on the drawings by their part numbers. 3.4 Commercial parts. Commercial utility parts such as scre
18、ws, bolts, nuts, or cotter pins having suitable properties may be used where there are no suitable standard parts provided: a. They can be replaced by the standard parts (MS or AN) without alteration. b. The corresponding standard part numbers are referenced in the parts list and if practical, on th
19、e contractors drawings. 3.5 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 e
20、conomically advantageous life cycle costs. 3.6 Materials. Materials shall conform to the applicable specifications and shall be specified herein. Materials for which there are no applicable specifications, or that are not specifically described herein, shall be of the best quality, of the lightest w
21、eight, and suitable for the purpose intended. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-6839E 4 3.6.1 Fungus-proof materials. Materials that are nutrients for fungi shall not be used where it is practical to avoid them. Where used and n
22、ot hermetically sealed, they shall be treated with a fungicidal agent acceptable to the contracting activity. 3.6.2 Metals. Metals shall be of a corrosion-resistant type or suitably treated to resist corrosion due to conditions likely to be encountered in storage or normal service life. 3.6.2.1 Diss
23、imilar metals. Dissimilar metals as defined in MIL-STD-889 shall not be used in intimate contact with each other unless suitably protected against electrolytic corrosion by means of protective coating. 3.6.3 Non-magnetic materials. Non-magnetic materials shall be used for all parts of the instrument
24、 except where magnetic materials are essential. 3.6.4 Corrosive fumes. The materials, as installed and under normal operating conditions, shall not liberate gases or fumes that will result in corrosion that will cause malfunction of equipment or discoloration of dials. 3.7 Design and construction. T
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