1、MIL-B-3753E 38 9997706 02075LLI 7 c! 3wx-=- MIL-B-3753E Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Belvoir Research, Development, and Engineering Center, ATTN: STRBE-TSE, Fort Belvoir, VA 2
2、2060-5606 by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by USA J 1.3 Specification part number. The specification part number is a definitive part number which will be formatted to identify each item covered by this
3、specification. requirement options in this specification as follows (see 6.2). The part number will be formatted by selecting from the MIL-B-3753D 9 December 1974 MILITARY SPECIFICATION BUCKETS, CONCRETE, HAND-OPERATED, 314- TO 2-CUBIC YARD CAPACITY This specification is approved for use by all Depa
4、rtments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers hand-operated concrete handling buckets. 1.2 Classification. The bucket shall be one of the following sizes, as specified (see 6.2): Size Size 100 - 1-cubic yard capacity. Size 150 - l-l/2-cubic yard cap
5、acity. Size 200 - 2-cubic yard capacity. 75 - 3/4-cubic yard capacity. 3753 li Definitive specification part number M Prefix-An item identified by inch-pound (US) units L I Specification number Size (see 1.3.1 Example: M375B designates a one cubic yard capacity bucket. 1.3.1 Size designator. A one-p
6、osition numeric field used to show size of bucket (see table I). letter. AMSC NIA PSC 3815 DISTRIBUTLON STATEMENT A. Approved for public release; distribution is unlimited. THIS DOCUMENT CONTAINS I-/- -. PAGES. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from
7、 IHS-,-,-MIL-B-3753E d TABLE I. Capacity designation. . - -*- -r _. i 2, APPLICABLE DOCUMENTS 2,l Government documents. 2.1.1 Specifications and standards. The following specifications and standards form a part of this specification to the extent specified herein. Unless otherwise specified, the iss
8、ues of these documents shall be those listed in the issue of the Department of Defense Index of Specifications and Standards (DoDISS) and supplement thereto, cited in the solicitation. SPECIPICATIQNS MILITARY MIL-T-704 MIL-C-3580 MIL-G-10924 MIL-C-46168 MIL-(2-53039 STANDARDS MILITARY MIL-STD-105 MI
9、L-STD-130 MIL-STD-889 - Treatment and Painting of Materiei. - Cranes and Crane-Shovels, Truck, Crawler, and Wheel Mounted, Full-Revolving, and Their Attachments, Packaging of. - Grease, Automotive and Artillery. - Coating, Aliphatic Polyurethane, Chemical Agent Resistant. - Coating, Aliphatic Polyur
10、ethane, Single Component, Chemical Agent Resistant. - Sampling Procedures and Tables for - Identification Marking of US Military - Dissimilar Metals. Inspection by Attributes. Property. (Copies of specifications, standards, handbooks, drawings, publications, and other Government documents required b
11、y contractors in connection with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting activity.) 2.2 Other publications. The following document(s) form a part of this specification to the extent specified herein. Unless otherwise specified
12、, the 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-B-3753E 38 M 7777706 0207536 O W MIL-B-3753E issues of the documents which are DOD adopted shall be those Listed in the issue of the DoDISS specified in the solicitation. issues of documents
13、 not listed in the DoDISS shall be the issue of the nongovernment documents which is current on the date of the solicitation. Unless otherwise specified, the AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) A 283 Steel Plates of Structural Quality. D 3951 - Standard Practice for Commercial Packagin
14、g. - Specification for Low and Intermediate Tensile Strength Carbon (Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) AMERICAN WELDING SOCIETY, INC. (AWS) D1.l - Structural Welding Code, Section 5, Qualification.
15、 D14.3 - Earthmoving and Construction Equipment, Specification for Welding. (Application for copies should be addressed to the American Welding Society, Inc., 2501 NW Seventh Street, Miami, FL 33125.) AMERICAN SOCIETY OF MECHANICAL ENGINEERS (ASME) Boiler and Pressure Vessel Code, Welding Qualificat
16、ions, Section IX. (Application for copies should be addressed to the American Society of Mechanical Engineers, 345 East 47th Street, New York, NY 10017.) (Nongovernment standards and other publications are normally available from the organizations which prepare or which distribute the documents. doc
17、uments also may be available in or through libraries or other informational services. ) These 2.3 Order of precedence. In the event of a conflict between the text of this specification and the references cited herein, (except for associated detail specifications, specifications sheets or MS standard
18、s), the text of this specification shall take precedence. shall supersede applicable laws and regulations unless a specific exemption has been obtained. Nothing in this specification, however, 3. REQUIREMENTS 3.1 Description. The bucket shall consist essentially of a frame, hopper, discharge gate eq
19、uipped with a manual control handle or lever, and lifting bail. 3.2 First article. Unless otherwise specified (see 6.2), a sample shall be subjected to first article inspection (see 4.3 and 6.3). deviations of the production buckets from the approved first article during Any changes or 3 Provided by
20、 IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-E-3753E 38 D 999990b 0209537 2 i- 3.4.4 Recovered materials, For the purpose o this requirement, recovered materials are tose materials which have been collected from solid waste and reprocessed to Ibecome a s
21、ource ob raw materials, as distinguished from virgin raw materials. The components, pieces and parts incorporated In the bucket may be newly fabricated Zrom recovered materiale to the maximum extent practicable, provided the bucket produced meets .all other requirements of this specification. Used,
22、rebuilt or remanufactured components, pieces and parts shall not be incorporated in the bucket. 3.5 Capacity. Rated bucket capacities shall be as specified in L2, MIL-B-3753E I 3.6 Components. 3.6.1 Hopper The hopper construction .shall assure discharge of the full load. The interi,or shall be free
23、from projections, indentations, or imperfec- tions that would tend to retard or prevent complete discharge of the contents. The hopper volume shall be not less than 110 percent of the rated capacity. Steel sheet used shall .meet: or exceed the requirements of ASTM A 283, grade D, and the sheet thick
24、ness shall be not less than the following: production will be subject to the approval of the contracting officer. of the first article will not relieve the contractor OE his obligation to fgrnish buckets conforning to this specification. Approval 3.3 Commercial bucket parts and components. Except as
25、 modified or required by this specification, the bucket parts and components shall be and assemblies of the buckets including castings, forgings, molded parts, stamplngs, bearings, seals, machined 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL
26、-B-3753E surfaces, and welded parts, shall be clean and free from sand, dirt, fins, pits, sprues, scale, flux, and other harmful extraneous material. External surfaces shall be free rom burrs, sharp edges, and corners except when sharp edges and corners are required. 3.11.1 Metal fabri-cation. Metal
27、 used in the fabrication of the buckets shall The straightening of material shall be done Shearing and chipping shall be free rom kinks and sharp bends. by methods that will not cause injury to the metal. be c!ons neatly and accurately. wich controlled means in order to insure uniformity of size and
28、 shape. All bends of a major character shall be made 3.11.2 Bolted connections. Boltholes shall be accurately punched or drilled and shall have the burrs removed. Washers or lockwashers shall be provided in uccordance with commercial practice, and all bolts, nuts, and screws shall be tight . 3.11.3
29、Riveted connections. Rivet holes shall be accurately punched or drilled and shall have the burrs removed. Rivets shall be driven with pressure tools and shall completely fill the holes. flattened, shall be of approved shape and of uniform size for ths same diameter of rivet. Rivet heads shall be ful
30、l, neatly made, concentric with the rivet holes, and in full contact with the surface of the member. Rivet heads, when not countersunk or 3.11.4 Welders and welding. 3.11.4.1 Welders. Before assigning any welder to manual welding work covered by this epecification, the contractor shall obtain certif
31、ication that the welder has passed qualification tests as pqescribed by either of the following listed codes Por the type of welding operations to be performed and that such qualifi- cation is effective as defined by the particular code: AWS D1.1 - Structural Welding code, Section 5, Qualification.
32、AWS D14.3 - Earthmoving and Construction Equipment, Specification for ASME - Boiler and Pressure Vessel Code, Section IX, Welding Welding . Qualification. Certification of welder qualification shall be made available for review by the contracting officer ar designated representative. horizontal weld
33、s need not qualify welders for “all position welding“. contractor shall be responsible for determining that automatic welding equipment operators are capable of producing quality welds in accordance with AWS OR ASME codes . Contractors who make only The 3.11.4.2 Welding. Surfaces o steel parts to be
34、 welded shall be free from rust, scale, paint, grease, mill scale that can be removed by chipping and wire brushing, and other foreign matter. Welds shall transmit stress without permanent deformation or failure when parts connected by welds are subjected to proof and service loading. techniques sha
35、ll be as required to enable the bucket to conform to examination and test requirements specified in section 4, Parent materials, weld filler metals, and fabrication Parts to be joined by fillet welds 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
36、MIL-B-3753E 38 m 7777706 0207520 2 m MIL-B-3753E shall be brought into as close contact as possible and in no event shall be separated by more than 1/16 inch. the contractor and shall conform to the provisions of AWS D1.l and D14.3. The welding process shall be at the option of 3.11.5 Castings. Cast
37、ings shall be sound and free from patching, misplaced coring, warping, or other defects which might render the casting unsound for use. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the contractor is responsible for t
38、he performance of all inspection requirements as specified herein. 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 ri
39、ght 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. Except as otherwise specified in 4.1.1 Responsibility for compliance. All items must meet all requirements of The inspe
40、ction set forth in this specification shall become a sections 3 and 5. part of the contractors overall inspection system or quality program. absence of any inspection requirements in the specification shall not relieve the contractor of the responsibility of assuring that all products or supplies su
41、bmitted to the Government for acceptance comply with all requirements of the contract. known defective material, either indicated or actual, nor does it commit the Government to acceptance of defective material. The Sampling in quality conformance does not authorize submission of 4.2 Cla.ssification
42、 of inspections. Inspections shall be classified as follows : a. b. c. First article inspection (see 4.3). Quality conformance inspecition (see 4.4). Inspection of packaging (see 4,6). 4.3 First article inspection. 4.3.1 Examination. The first article bucket(s) shall be examined for the defects mark
43、ed “X“ in column 1 of table II. Presence of one or more defects shall be cause for rejection. 4.3.2 Test. The first article bucket(s) shall be subjected to the tests marked “X- column 1 of table III. rejection. Failure of any test shall be cause for 4.4 Quality conformance inspection. 4.4.1 Sampling
44、. inspection level S-l. Sampling for tests shall be in accordance with MIL-STD-105, 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-B-3753E 38 M 997q9Ob 0209521 4 M MIL-B-3753E 4.4.2 Examination. 4,4,2,1 Individual. Each bucket shall be examin
45、ed for the defects marked “X“ in column 3-of table XI. rejection Q the bucket. Presence of one or more defects shall be cause for 4.4.2.2 Samples. Samples selected in accordance with 4.4.1 shall be examined for the defects marked “X“ in column 2 of table II. defective. AQL shall be 1.0 percent 4.4.3
46、 Tests. 4.4.3.1 Samples. Samples selected in accordance with 4.4.1 shall be cubjected tothe teets marked “X“ in column 2 of table III. percent defective. AQL shall be 1.0 4.5 Inspection procedure, 4.5.1 Examination, Examination shall be in accordance with table II. TABLE II. Examination schedule. al
47、 Pl o *A U t; U v) I4 *A Fr, 1 X X X X X X Quality Defect 4 Major 101. Not size of bucket specified. 102. Parts or components missing or not as specified. 103. Materials not as specified. 104. Materials not resistant to corrosion and deterioration, or treated to be resistant to corrosion and deterio
48、ration for the applicable storage and operating environments. 105. Dissimilar metals as defined in MIL-STD-889 are not effectively insulated from each other. documentation available for identification of material, material finishes, or treatment. 106, Contractor does not have 8 I Requirement paragra
49、ph 5 1.2 3.3 3 84 3.401 3.4.2 3.4.3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-B-3753E 38 m 777770b 0207522 b m a rl c) .rl ci &I (d ci *rl Fr I: 1 X X X X X X X X X X X X X X Quality :onf - v1 a rl CA - 2 - X X X X X X X X X X X X - X - MIL-B-3753E TABLE II. Examination schedule. (Contd) Defect b Major- 107. 108. 109. 110. 111. 112. 113. 114. 115. 116. 117. 118. Us
