1、_ SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising there
2、from, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions. Copyright 2017 SAE International All rights reserved. No part of this p
3、ublication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada)Tel: +1 724-776-4970
4、 (outside USA)Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org SAE values your input. To provide feedback on this Technical Report, please visit http:/standards.sae.org/AS85075 AEROSPACESTANDARDAS85075 Issued 2000-03 Reaffirmed 2017-11 Tie Down Assembly, Helicopter
5、Blade, General Specification For FSC 1730 RATIONALE AS85075 has been reaffirmed to comply with the SAE Five-Year Review policy. NOTICEThis document has been taken directly from U.S. Military Specification MIL-T-85075A(AS) and contains only minor editorial and format changes required to bring it into
6、 conformance with the publishing requirements of SAE technical standards. The initial release of this document is intended to replace MIL-T-85075A(AS). Any part numbers established by the original specification remain unchanged.The original Military Specification was adopted as an SAE standard under
7、 the provisions of the SAE Technical Standards Board (TSB) Rules and Regulations (TSB 001) pertaining to accelerated adoption of government specifications and standards. TSB rules provide for (a) the publication of portions of unrevised government specifications and standards without consensus votin
8、g at the SAE Committee level, and (b) the use of the existing government specification or standard format.Under Department of Defense policies and procedures, any qualification requirements and associated qualified products lists are mandatory for DOD contracts. Any requirement relating to qualified
9、 products lists (QPLs) has not been adopted by SAE and is not part of this SAE technical document.1. SCOPE:1.1 Scope:This specification covers the tie down assemblies for use on helicopter blades.2. APPLICABLE DOCUMENTS:2.1 Government documents:2.1.1 Specifications, standards, and handbooks: The fol
10、lowing specifications, standards, and handbooks form a part of this specification to the extend specified herein. Unless otherwise specified, the issues of these documents shall be those listed in the issue of the Department of Defense Index of Specifications and Standards (DoDISS) and supplement th
11、ereto, cited in the solicitation.SPECIFICATIONSFEDERALQQ-C-320 Chromium Plating (Electrodeposited)QQ-N-290 Nickel Plating (Electrodeposited)QQ-P-416 Plating, Cadmium (Electrodeposited)QQ-S-365 Silver Plating, Electrodeposited, General Requirements forMILITARYMIL-C-5541 Chemical Conversion Coatings o
12、n Aluminum AlloysMIL-H-6875 Heat Treatment of Steel, Process forMIL-A-8625 Anodic Coatings, for Aluminum and Aluminum AlloysMIL-T-10727 Tin Plating, Electrodeposited or Hot-dipped, for Ferrous and Nonferrous MetalsMIL-C-26074 Coatings, Electroless Nickel, Requirements forMIL-T-85075/1 Tie Down Assem
13、bly, Helicopter Blade, CH-46 HelicopterMIL-T-85075/2 Tie Down Assembly, Helicopter Blade, CH-53 HelicopterSTANDARDSMILITARYMIL-STD-105 Sampling Procedures and Tables for Inspection by AttributesMIL-STD-129 Marking for Shipment and StorageMIL-STD-130 Identification Marking of U.S. Military PropertyMI
14、L-STD-143 Standards and Specifications, Order of Precedence for the Selection ofMIL-STD-704 Aircraft Electric Power CharacteristicsSAE INTERNATIONAL AS85075 Page 2 of 12_ 2.1.1 (Continued):MIL-STD-794 Part and Equipment, Procedures for Packaging and Packing ofMIL-STD-810 Environmental Test MethodsMI
15、L-STD-831 Test Reports, Preparation ofMIL-STD-889 Dissimilar MetalsMILITARY HANDBOOKSMIL-HDBK-5 Aerospace Vehicle Structures, Metallic Materials and Elements for(Copies of specifications, standards, handbooks, drawings and publications required by manufacturers in connection with specific acquisitio
16、n functions should be obtained from the contracting activity or as directed by the contracting officer.)2.2 Other publications:The following document(s) form a part of this specification to the extent specified herein. Unless otherwise specified, the issues of the documents which are DoD adopted sha
17、ll be those listed in the issue of the DoDISS specified in the solicitation. Unless otherwise specified, the issues of the documents not listed in the DoDISS shall be the issue of the nongovernment documents which is current on the date of the solicitation.AMERICAN SOCIETY FOR TESTING AND MATERIALS
18、(ASTM)B633-78 Electrodeposited Coatings of Zinc on Iron and Steel, Specification forAMS 5643 Steel Bars, Forgings, Tubing and Rings, Corrosion Resistant(Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.)2.3 Order o
19、f precedence:In the event of a conflict between the text of this specification and the references cited herein (except for associated detail specifications, specification sheets or MS standards), the text of this specification shall take precedence. Nothing in this specification, however, shall supe
20、rsede applicable laws and regulations 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 sheets. In the event of any conflict between requirements of
21、this specification and the specification sheet, the latter shall govern.SAE INTERNATIONAL AS85075 Page 3 of 12_ 3.2 First article:When specified in the contract or purchase order (see 4.3 and 6.2.1), the contractor shall furnish sample tie down assemblies for first article inspection(s) and approval
22、. A new contractor, supplier, or manufacturer shall be required to complete a first article inspection (4.3).3.3 Materials:Materials used in the manufacture of tie down assemblies shall be of aircraft quality, suitable for the purpose, and shall conform to applicable Government specifications. Mater
23、ials conforming to contractors specifications may be used, provided they are equivalent to Government specifications with respect to operating characteristics and that a savings in weight or cost can be accomplished. Contractors specifications must be satisfactory to the Government and contain provi
24、sions for adequate tests as specified herein. The use of contractors specifications will not constitute waiver of Government inspection.3.3.1 Metals: All metals shall be compatible with the intended temperature, functional, service and storage conditions to which the components will be exposed. The
25、metals shall possess adequate corrosion resistant characteristics or shall be suitably protected by the use of coatings equivalent to those listed in Table I to resist corrosion which may result from such conditions as dissimilar metal combinations, moisture, and salt spray as applicable. Where not
26、indicated, class or type is at the option of the manufacturer, subject to approval by the procuring activity. Dissimilar metals are defined in MIL-STD-889. Unless otherwise specified herein, physical properties of all metals shall meet the minimum requirements of MIL-HDBK-5.3.3.1.1 Copper and alumin
27、um alloys: All copper alloys except for bearing surfaces shall be suitably protected with a coating selected from Table I, except that cadmium and zinc plating shall not be used in applications subject to abrasion. Other metallic coatings, which shall have been demonstrated to be satisfactory to the
28、 Government, such as electrodeposited 85 percent tin and 15 percent cadmium alloy, may be used. All aluminum alloys shall be anodized in accordance with MIL-A-8625, type II coating, except that in the absence of abrasive conditions the anodize may be type I coating, where applicable, or may be a che
29、mical film in accordance with MIL-C-5541.SAE INTERNATIONAL AS85075 Page 4 of 12_ TABLE I. Metal Coatings.3.3.2 Plastic parts: The use of plastic parts shall be subject to the approval of the procuring activity for the specific application involved.3.3.3 Selection of materials, parts and processes: S
30、pecifications and standards for all materials, parts, and Government certification and approval of processes and equipment, which are not specifically designated herein and which are necessary for the execution of this specification, shall be selected in accordance with MIL-STD-143, except as provid
31、ed in the following paragraph.3.3.3.1 Standard parts: Standard part (MS, AN or Specification sheet) shall be used wherever they are suitable for the purpose, and shall be identified on the drawing by their (MS, AN or Specification sheet) part numbers. Commercial utility parts, such as screws, bolts,
32、 nuts, and cotter pins may be used, provided they possess suitable properties and are replaceable by the standard parts (MS, AN or Specification Sheet) without alteration, and provided the corresponding standard part numbers are referenced in the parts list and, if practicable, on the contractors dr
33、awings. In the event there is no suitable corresponding standard part in effect on date of invitation of bids, commercial parts may be used provided they conform to all requirements of this specification and the detail specification.3.4 Design and construction:The design and construction of the tie
34、down assembly shall be as specified herein and in accordance with the applicable specification sheet.3.4.1 Dimensions and tolerances: Dimensions and tolerances shall be as specified on the applicable specification sheet.3.5 Performance:Tie down assemblies shall be performed satisfactorily when subje
35、cted to the applicable tests specified in this specification, and the applicable specification sheets.SAE INTERNATIONAL AS85075 Page 5 of 12_ 3.6 Finish:All surfaces shall have a smooth finish and be free from burrs and sharp edges.3.7 Identification of product:3.7.1 Marking: Tie down assembly marki
36、ng shall be as indicated on the applicable specification sheet, MIL-T-85075/1 or MIL-T-85075/2.3.7.2 Part numbering and drawing numbering: The manufacturers basic part number and drawing number shall be the same.3.8 Workmanship:Workmanship shall be high grade to insure that tie down assemblies are o
37、f uniform quality and free from burrs, slivers, sharp edges, or other defects which would affect their service or performance, and shall be uniform in their appearance without any mold flash.4. QUALITY ASSURANCE PROVISIONS:4.1 Repsonsibility for inspection:Unless otherwise specified in the contract
38、or purchase order, the contractor is responsible for the performance of all inspection requirements as specified herein. Except as otherwise specified in the contract or purchase order, the contractor may use his own or any other facilities suitable for the performance of the inspection requirements
39、 specified herein, unless disapproved by the Government. The Government reserves the right to perform any of the inspections set forth in the specification where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements.4.1.1 Responsibility for complian
40、ce: All items must meet all requirements of section 3 and 5. The inspection set forth in this specification shall become a part of the contractors overall inspection system or quality program. The absence of any inspection requirements in the specification shall not relieve the contractor of the res
41、ponsibility of assuring that all products or supplies submitted to the Government for acceptance comply with all requirements of the contract. Sampling in quality conformance does not authorize submission of known defective material, either indicated or actual, nor does it commit the Government to a
42、cceptance of defective material.4.2 Classification of inspection:The inspection and testing of tie down assemblies shall be classified as:a. First article inspection (4.3)b. Quality conformance inspection (4.4)SAE INTERNATIONAL AS85075 Page 6 of 12_ 4.3 First article inspection:It shall be mandatory
43、 to require all new manufacturers or first-time contractors to successfully complete first article inspection.4.3.1 Samples: Samples for first article testing shall consist of six tie down assemblies.4.3.2 Inspections: First article inspections shall consist of the tests specified under 4.6 conducte
44、d on tie down assembly samples, in the order specified in Table II.Table II. First article inspections.4.3.3 First article test report: The contractor shall prepare a report of the first article tests in accordance with MIL-STD-831 showing that the tie down assemblies tested conform to this specific
45、ation. Two copies shall be furnished to the procuring activity and two additional copies shall be forwarded with the verification test samples. First article test report shall be in accordance with 6.3.1.4.3.4 Verification test samples for the procuring activity: The contractor shall submit to the a
46、gency specified in 6.2(d), together with the first test report, 5 sample tie down assemblies to be used as follows:a. For review of the mechanical construction of the product.b. To perform any tests included in this specification, after reviewing the contractors test report.4.4 Quality conformance i
47、nspection:The inspection requirements specified herein are classified as follows:a. Individual inspection (4.4.2)b. Sampling inspection (4.4.3)The quality conformance test report shall be in accordance with 6.3.1.SAE INTERNATIONAL AS85075 Page 7 of 12_ 4.4.1 Inspection lot: An inspection lot shall consist of tie down assemblies of a particular size, and material produced under essentially the same manufacturing conditions and presented for inspection a
