1、MIL-E-52301D 54 9999906 1210496 326 M I INCH-POUND I MI L-B-52301D 14 October 1992 SUPERSEDING MIL-B-52301C 23 January 1984 MI L ITARY SPEC I F I CAT ION BRACKET ASSEMBLY, CHAIN HOIST SUPPORT This specification is approved for use by all Departments and Agencies of the Department of Defense. . SCOPE
2、 1.1 ScoDe. This specification covers a bracket assembly and its components to be used with a trestle assembly (MIL-T-52150). 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 SDecifications and standards. The following specifications and standards form a part of this document to the extent sp
3、ecified 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). Beneficial comments (recommendations, additions, deletions)
4、 and any pertinent data which may be of use in improving this document should be addressed to : USA Bel voi r Research , Deve1 opment , and Engi neeri ng Center, ATTN: SATBE-TSE, Fort Belvoir, VA 22060-5606 by using the Standardization. Document Improvement Proposal (DD Form 1426) appearing at the e
5、nd of this document or by letter. AMSC NIA FSC 5420 DISTRIBUTION STATEMENT A. Approved for.public release; distribution is un1 imi ted. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-B-52303D 54 D 999990b 3230497 262 MIL-B-52301D SPECIFICATIONS
6、FEDERAL PPP-B-601 PPP-B-621 - Boxes , Wood , Nai 1 ed and Lock-Corner . PPP-B-636 - Box, Fiberboard. - Boxes, Wood, Cleated Plywood. MILITARY MIL-T-704 - Treatment and Painting of Materiel. STANDARDS MI L ITARY MIL-STD-105 MI L-STD-129 MIL-STD-889 - Di ssimi 1 ar Metal s. MIL-STD-1186 - Cushioning,
7、Anchoring, Bracing, Blocking, and Waterproofing; with Appropriate Test Methods. - Sampl ing Procedures and Tables for Inspection by - Marking for Shipment and Storage. Attributes. (Unless otherwise indicated, copies of federal and military specifications, standards, and handbooks are available from
8、the Standardization Documents Order Desk, Building 40, 700 Robbins Avenue, Philadelphia, PA 19111-5094.) 2.1.2 Other Government documents and drawinas. The following other Government documents and drawings form a part of this document to the extent specified herein. on the date of solicitation. Unle
9、ss otherwise specgwfied, the issues are those in effect DRAWINGS ME TA1 3 207 E9734 - Bracket Assembly, Chain Hoist Support. (Copies of drawings required by contractors in connection with specific acquisition functions should be obtained from the USA Belvoir Research, Development, and Engineering Ce
10、nter, ATTN: SATBE-JBS, Fort Belvoir, VA 22060-5606. ) 2.2 Non-Government Dublications. The following document(s) form a part of this document to the extent specified herein. Unless otherwise specified, the issues of the documents which are DoD adopted are those listed in the issue of the DoDISS cite
11、d 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 (see 6.2). 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-B-5230LD 54 m 9999906 L2L04
12、98 IT9 m MIL-B-52301D AMERICAN SOCIETY OF MECHANICAL ENGINEERS (ASME) Boiler and Pressure Vessel Code, Section IX, Qualification Standard for Welding and Brazing Procedures, Welders, Brazers, and Welding and Brazing Operators. (Application for copies should be addressed to the American Society of AM
13、ERICAN SOCIETY FOR TESTING MATERIALS (ASTM) Mechanical Engineers, 345 East 47th Street, New York, NY 10017.) D 3953 - Strapping, Flat Steel and Seals. D 4675 - Selection and Use of Flat Strapping Materials. (Application for copies should be addressed to the American Society for AMERICAN WELDING SOCI
14、ETY (AWS) Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) A 5.1 - Carbon Steel Electrodes for Shielded Metal Arc A 5.18 - Carbon Steel Filler Metals for Gas Shielded Arc D 1.1 We1 ding . We1 ding . - Structural Welding Code - Steel. 550 N.W. LeJeune Road, P.O. Box 351040, Miami, FL
15、 33135.) (Application for copies should be addressed to the American Welding Society, NATIONAL MOTOR FREIGHT TRAFFIC ASSOCIATION (NMFTA) National Motor Freight Classification Rules (Application for copies should be addressed to the National Motor Freight Traffic Association, ATTN: VA 22314.) Traffic
16、 Order Section, 2200 Mill Road, Alexandria, UNI FORM CLASS I F ICAT ION COMMITTEE (UCC) Uniform Freight Classification Rules (Application for copies should be addressed to the Uniform Classification Tariff Pub1 ishing Officer, Room 1106, 222 South Riverside Committee, ATTN: Plaza, Chicago, IL 60606.
17、) the organizations that prepare or distri bute the documents. These documents also may be available in or through libraries or other informational services.) (Non-Government standards and other publications are normally available from 3 Provided by IHSNot for ResaleNo reproduction or networking per
18、mitted without license from IHS-,-,-MIL-B-52303D 54 m 999990b 3230499 035 m MIL-B-52301D 2.3 Order of Drecedence. In the event of a conflict between the text of this document and the references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes ap
19、plicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 DescriDtion. The bracket assembly or components shall be as shown on top assembly TA13207E9734 and as specified herein. 3.1.1 Drawinas. The drawings forming a part of this specification are end product d
20、rawings. No deviation from the prescribed dimensions or tolerances is permissible without prior approval of the contracting officer. Where tolerances could cumulatively result in incorrect fits, the contractor shall provide tolerances within those prescribed on the drawings to insure correct fit, as
21、sembly, and operation of the bracket assembly. Any data (e.9. shop drawings, layouts, flow sheets, processing procedures, etc.) prepared by the contractor or obtained from a vendor to support fabrication and manufacture of the production item shall be made available, upon request, for inspection by
22、the contracting officer or the designated representative. subjected to first article inspection (see 6.3) in accordance with 4.3. 3.2 First article. Unless otherwise specified (see 6.2), a sample shall be 3.3 Material. Material shall be as specified herein and as shown on the applicable drawings. Ma
23、terials not specified shall be selected by the contractor and shall be subject to all provisions of this specification. 3.3.1 Material deterioration and control. The bracket assembly shall be fabricated from compatible materials, inherently corrosion and deterioration resistant, or treated to provid
24、e protection against the various forms of corrosion and deterioration that may be encountered in any of the applicable storage and operating environment to which the bracket assembly may be exposed. contact with each other unless protected against galvanic corrosion. Dissimilar metals and methods of
25、 protection are defined and detailed in 3.3.1.1 Dissimilar metals. Dissimilar metals shall not be used in intimate MIL-STD-889. 3.3.1.2 Identification of materials and finishes. The contractor shall identify the specific material, material finish, or treatment for use with components and sub-compone
26、nts, and shall make information available, upon request, to the contracting officer or designated representative. 3.3.1.3 Recovered materials. For the purpose of this requirement, recovered materials are those materials which have been collected from sol id waste and reprocessed to become a source o
27、f raw materials, as distinguished from virgin raw materials. The components, pieces, and parts incorporated in the item may be newly fabricated from recovered materials to the maximum 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-B-52301D 54
28、9999906 1210500 687 MIL-B-52301D extent practicable, provided the item produced meets all other requirements of this specification. parts shall not be incorporated in the item. Used, rebuilt, or remanufactured components, pieces, and 3.4 Weldinq electrodes. Welding electrodes shall conform to AWS A
29、5.1 or AWS A 5.18, classification and size as required. 3.5 Identification marking. The bracket assembly or components, as applicable, shall be metal-die stamped as shown on the applicable drawing. Die stamping shall be legible after painting. 3.6 -t. The bracket assembly or components, as applicabl
30、e, with the exception of the pin assembly and the bridge pin retainer assembly, shall be cleaned, treated, and painted in accordance with MIL-T-704, type F. Exterior topcoat shall be camouflage green 383. 3.7 Stencilinq. The nomenclature, National stock number, weight, and cube Markings shall be Got
31、hic-type capital s and Arabic numerals 1/2 shall be stenciled on each bracket assembly. The letters “NET WT“ shall precede the numerals in the weight and letters “CU“ shall precede the cubic displacement. inch high. Stenciling shall conform to MIL-T-704. 3.8 Workmanshi D. 3.8.1 Steel fabrication. St
32、eel may be cut by shearing, sawing, or flame cutting. Burned surfaces of flame-cut material shall be ground or machined to remove cooling checks. Holes shall be drilled to full size or drilled under- size and reamed to full size through steel templates. All burrs shall-be removed. 3.8.2 Welders and
33、weldinq. 3.8.2.1 Welders or weldinq ooerator. Before assigning any welder or welding operator to manual welding work covered by this specification, the contractor shall obtain certification that the welder or welding operator has passed qualification tests as prescribed by either AWS D 1.1 or the AS
34、ME code for the materials joined and the type of welding operation to be performed and that such qualification is effective as defined. Contractors who only make horizontal welds need not qualify welders for “all position welding“. The contractor is responsible for determining that automatic welding
35、 equipment operators are capable of producing quality welds in accordance with AWS and ASME codes. the right to require retesting of any welder or welding operator (see 6.5). In the event of evidence of poor welds, the Government reserves 8 3.8.2.2 Weldinq. The surfaces of parts to be welded shall b
36、e free from scale, paint, grease, and other foreign matter. Welding shall be done by the shielded metal-arc or gas metal-arc (MIG) process and shall conform to the provisions of ASME or AWS Code. All welded parts shall be free from cracks and other imperfections that may reduce the effectiveness of
37、the part. Work 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-B-52301D 5Li 9999706 I1210501 513 MIL-B-52301D shall be positioned for flat welding when practicable. Before welding over previously deposited weld metal, all traces of slag shall b
38、e removed and the deposit and adjoining base metal shall be wirebrushed clean. 4. QUALITY ASSURANCE PROVISIONS 4.1 Resoonsibilitv for InsDection. Unless otherwise specified in the contract or purchase order, the contractor is responsible for the performance of all inspection requirements (examinatio
39、ns and tests) 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 specified herein, unless disapproved by the Government. The Government reserves the r
40、ight to perform any of the inspections set forth in the specification where such inspections are deemed necessary to ensure supplies and services conform to prescribed requirements. 4.1.1 ResDonsi bi 1 itv for comDl i ance. Al 1 i tems must meet al 1 requirements of sections 3 and 5. The inspection
41、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 responsibility of ensuring that all products or supplies submitted to the Gover
42、nment for acceptance comply with all requirements of the contract. Sampling inspection, as part of manufacturing operat ions , i s an acceptabl e practice to ascertai n conformance to requirements, however, this does not authorize submission of known defective material, either indicated or actual, n
43、or does it commit the Government to acceptance of defect i ve materi al . 4.1.2 ComDonent and material inmection. The contractor is responsible for insuring that components and materials used are manufactured, examined, and tested in accordance with referenced specifications and standards, as appl i
44、 cab1 e. 4.1.3 Parts and comDonents. Parts and components detailed on the drawings shall be inspected in accordance with the quality assurance provisions (QAP) shown on the drawings. The drawings specify the characteristics requiring QAP inspection, the sampling plan, and the basis for acceptance an
45、d rejection (see 6.4 and 6.6). 4.2 C1 assi f icat i on of insDect ions. Inspecti on requirements specified herein are classified as follows: a. b. c. First article inspection (see 4.3). Quality conformance inspection (see 4.4). Inspection of packaging (see 4.6). 6 Provided by IHSNot for ResaleNo rep
46、roduction or networking permitted without license from IHS-,-,-MIL-B-52301D 54 9999906 1210502 45T MIL-B-52301D 4.3 First article inspection. 4.3.1 Examination. The first article bracket assembly or components, as applicable, shall be examined for the defects specified in 4.5.1. one or more defects
47、shall be cause for rejection. Presence of 4.4 Oual itv conformance insoection. 4.4.1 SamDlinq. Sampling for examination shall be in accordance with MIL-STD-105. and table IIa. A lot shall be accepted when zero defects are found and rejected when one or more defects are found. examined for the major
48、and minor defects specified in 4.5.1. or more defects shall be cause for rejection. Sample size shall be determined by using MIL-STD-105, table I 4.4.2 Examination. Samples selected in accordance with 4.4.1 shall be Presence of one 4.5 inspecti on Drocedure. 4.5.1 Examination. The bracket assembly o
49、r components, as applicable, shall be examined as specified herein for the following defects: Major 101. 102. 103. 104. 105. 106. 107. 108. 109. Mi nor 201. 202. 203. 204. Any part of component missing or not as specified (see 4.1.2) Material not as specified (see 3.3). Materials are not corrosion resistant or treated to be made corrosion resistant for the applicable storage and operating environment (see 3.3.1). Dissimilar metals as defined in MIL-STD-889 are not
