1、MIL-B-233D 81 999990b 02?9323 L - MIL-B-233D(NAVY) 10 July 1987 SUPERSEDING MIL-B-233C(NAVY) 10 April 1967 (See 6.7) MILITARY SPECIFICATION BOXES, SUPPLY SUPPORT ITEMS, STOWAGE AND STORAGE This specification is approved for use within the Department of the Navy and is available for use by all Depart
2、ments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers the design, fabrication, testing, packaging, and use of special purpose boxes for the protection and stowage or storage of supply support items (see 6.5.2) for mechanical, electrical and electronic systems
3、 and equipments. 1.2 Classification. 1.2.1 Types and classes. Boxes shall be of the following types and classes, as specified (see 6.2.1). Type M - Steel. Type W - Nonmagnetic. Class 1 - Wood or plywood. Class 2 - Aluminum. Class 3 - Plastic or reinforced plastic. 1.2.2 Sizes. Sizes shall be as spec
4、ified in table I (see 6.2.1). 1 i Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commander, Naval Sea Systems Command, SEA 5523, Department of the Navy, Washington, DC 20362-5101 by using the s
5、elf-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. - AMSC N/A FSC 8115 DISTRIBUTION STATEMENT A Approved for public release; distribution unlimited Provided by IHSNot for ResaleNo reproduction or networking permitted without
6、 license from IHS-,-,-MIL-B-233D 8L W 993990b 0279124 3 m MI L-R - Z33D (NAVY) TABLE I. Sizes. Nominal inside dimensions Length ( inches ) 12 12 12 12 18 18 18 18 18 18 18 24 24 24 30 30 36 42 42 Width (inches) 6 9 12 9 6 9 12 9 12 15 12 12 15 15 15 15 15 9 15 Height (inches) 6 6 6 9 6 6 6 9 9 9 12
7、9 12 15 9 12 12 9 15 Load group I I I I I I II II II II II II III III III III III III III Nomina 1 cubic capacity ( inches ) 432 648 864 972 504 972 1296 1458 1944 2430 2592 2592 4320 5400 4050 5400 6480 3402 9450 1.2.2.1 Additional sizes. When specified (see 6.2.1), additional sizes may be provided
8、. When additional sizes are specified, the increased dimension shall be in multiples of 6 inches in length and 3 inches in width and 3 inches in height. Unless otherwise specified (see 6.2.1), boxes shall not be furnished in sizes smaller than that specified in table I. When a smaller box is require
9、d because of the small quantity of parts involved, approval for the use of fiber- board boxes in accordance with PPP-B-636 shall be obtained from the concerned activity. long or 3 inches high. The height dimensions should not exceed the width and the width should not exceed the length. boxes shall n
10、ot be provided for an individual item when the weight of the individual item and the box exceeds 200 pounds. an individual item when the gross weight exceeds 200 pounds shall be approved by the concerned activity . Boxes should be limited to a minimum size of not less than 4 inches Unless otherwise
11、specified (see 6.2.1), The design of a container for 2. APPLICABLE DOCUMENTS 2.1 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 issues of these docu
12、ments 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. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-B-233D 81 999990b 0279325 5
13、 9 MI 1.-R- 2 3 3D (NAVY) SPECIFICATIONS FEDERAL QQ-A-250 QQ-S-698 QQ-S-700 TT-P-645 TT-P- 6 6 4 TT-P- 1757 TT-T-29 1 TT-W-57 1 TT-W-572 MMM-A- 188 PPP-B-5 7 6 PPP-E-585 PPP-B-591 PPP-B-601 PPP-B-62 1 PPP-B-636 PPP-B-640 - Aluminum and Aluminum Alloy Plate and Sheet: - Steel Sheet and Strip, Low-Car
14、bon. - Steel Sheet and Strip, Medium and High Carbon. - Primer, Paint, Zinc Chromate, Alkyd Type. - Primer Coating, Synthetic, Rust-Inhibiting, Lacquer- - Primer Coating, Zinc Chromate, Low-Moisture- - Thinner, Paint, Mineral Spirits, Regular and - Wood Preservation: Treating Practices. - Wood Prese
15、rvative: Water-Repellent . - Adhesive; Urea-Resin-Type (Liquid and Powder). - Boxes, Wood, Cleated, Veneer, Paper Overlaid. - Boxes, Wood, Wirebound. - Boxes, Shipping, Fiberboard, Wood-Cleated. - Boxes, Wood, Cleated-Plywood. - Boxes, Wood, Nailed and Lock-Corner. - Boxes, Shipping, Fiberboard. - B
16、oxes, Fiberboard, Corrugated, Triple-Wall. General Specification for. Resisting. Sensitivity. Odorless. MILITARY MIL-P-116 , MIL-C-5541 MIL-A-8625 MIL-E-15090 DOD-P-15328 MIL-P-17549 MIL-W-18142 MIL-L-19140 STANDARDS - Preservation, Methods of. - Chemical Conversion Coatings on Aluminum and - Anodic
17、 Coatings, for Aluminum and Aluminum Alloys. - Enamel, Equipment, Light-Gray (Formula No. 111). - Primer (Wash), Pretreatment (Formula No. 117 for - Plastic Laminates, Fibrous Glass Reinforced, Marine - Wood Preservative Solutions, Oil-Soluble, Ship and - Lumber and Plywood, Fire-Retardant Treated.
18、Aluminum Alloys. Metals). (Metric) Structural. Boat Use. MILITARY MIL-STD-105 MIL-STD-129 MIL-STD-1186 - Cushioning, Anchoring, Bracing, Blocking and - Sampling Procedures and Tables for Inspection by - Marking for Shipment and Storage. Attributes. Water-Proofing; with Appropriate Test Methods. (Cop
19、ies of specifications and standards required by contractors in connection with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting activity.) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-
20、,-tlIL-B-233D 1 W 777770b 027912b 7 m MIL-B-233D(NAVY) 2.2 Other publications. The following documents form a part of this Specification to the extent specified herein. Unless otherwise specified, the issues of the documents which-are DoD adopted shall be those listed in the issue of the DoDISS spec
21、ified in the solicitation. Unless otherwise specified, the issues of documents not listed in the DoDISS shall be the issue of the nongovernment documents which is current on the date of the solicitation. AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI) HPMA HP 83 - American National/Stnndard for Hardwoo
22、d and MH15.1 Decorative Plywood. - Glossary of Packaging Terms. (Application for copies should be addressed to the American National Standards Institute, 1430 Broadway, New York, NY 10018.) AMERICAN PLYWOOD ASSOCIATION (APA) PS 1-83 - U.S Product Standard for Construction and Industrial Plywood with
23、 Typical APA Trademarks. (Application for copies should be addressed to the American Plywood Association, P.O. Box 11700, Tacoma, MA 98411.) . AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) A 682 - Standard Specification for Steel, Strip, High-Carbon, Cold-Rolled, Spring Quality, General Requirem
24、ents for. (DoD adopted) Cold-Rolled Soft, Untempered Spring Quality. (DoD adopted) - Standard Terminology of Packaging and Distribution Environments. (DoD adopted) A 684 - Standard Specification for Steel, Strip, High-Carbon, D 996 D 1272 - Standard Specification for Pentachlorophenol. D 3951 - Stan
25、dard Practice for Commercial Packaging. (DoD adopted) (Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) (Nongovernment standards and other publications are normally available from the organizations which prepare
26、or which distribute the documents. ments also may be available in or through libraries or other informational services.) These docu- 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
27、, specification sheets or MS standards), 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, 4 t Provided by IHSNot for ResaleNo reproduction or networking permitt
28、ed without license from IHS-,-,-MIL-B-233D 81 999990b 0239127 9 = MI 1 .-H- 7 3 3D (NAVY) I 3. REQUIREMENTS 3.1 Definitions or explanation of packaging terms. Definitions or explana- tion of packaging terms applicable to this specification shall be as stated in the applicable referenced documents, s
29、pecifications and 6.5. For definitions or explanation of packaging terms not specifjed herein, ANSI MH15.1 or ASTM D 996 shall apply. 3.2 General. 3.2.1 Materials. Unless otherwise specified (see 6.2.1), internal framing, partitions, supports, and trays shall be fabricated of the materials specified
30、 for the required type and class of box. Dissimilar metals shall not be used in intimate contact unless suitably protected against electrolytic corrosion. When any combination of dissimilar metals is assembled, an interposing coating shall be used. The boxes shall be as light in weight as practicabl
31、e, consistent with the required strength to withstand repeated rough handling without damage, bending, buckling, bulging, crushing, puncturing, splitting or other damage. Handles shall not fail or pull out in use. Edges and corners shall be free of burrs, sharp projections and slivers, and shall he
32、rounded where practicable and finished to a smooth surface to prevent injury to personnel. 3.2.1.1 Recovered materials. Unless otherwise specified herein, all material and articles incorporated in the products covered by this Specification shall be new and may be fabricated using materials produced
33、from recovered materials to the maximum extent practicable without jeopardizing the intended use. The term “recovered materials“ means materials which have been collected or recovered from solid waste and reprocessed to become a source of raw materials, as opposed to virgin raw materials. None of th
34、e above shall be. interpreted to mean that the use of used or rebuilt products is allowed under this specification unless otherwise specifically specified. 3.2.2 Drawings. When specified in the contract or order, drawings shall be prepared (see 6.2.2). 3.3 Type M boxes. Type M boxes, together with a
35、rrangements of fittings and attached hardware, shall be in general accordance with the construction shown on figure 1. Constructional modifications may be made as required for the purpose of meeting performance tests specified in 4.4. Seams or joints shall be as tight as practicable. 3.3.1 Material.
36、 Type M boxes shall be made of sheet steel in accordance with QQ-S-698 hot rolled annealed finish, ASTM A 682, or ASTM A 684. (Steel in accordance with QQ-S-698 or QQ-S-700 is more suitable for boxes fabricated by drawing and forming.) The thickness of sheet steel shall be not less than 0.054 inch f
37、or all sizes of boxes and shall be fabricated into a welded, riveted or drawn construction that shall withstand the rough handling and imposed load tests specified in 4.4.1.1 and 4.4.1.3. The maximum center-to-center distance between adjacent spot welds or rivets shall not exceed 1-1/2 inches. 5 Pro
38、vided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-llIL-B-233D 81 = 999990b 0279328 O 9 MIL-B-Z33D(NAVY) 3.3.2 Hardware. 3.3.2.1 Hasp. Boxes shall be provided with a hinge hasp. The size and weight of the hasp shall be consistent with the required duty. Th
39、e staple for the hinge hasp shall have a minimum opening 3/8 inch in diameter for use of a padlock. The keeper shall be so installed that it does not bear on the staple when the lid is pressed down to its fullest extent. 3.3.2.2 Hinges. Box covers shall be fitted with not less than two stan- dard st
40、eel hinges. The size and weight of the hinges shall be consistent with their required duty. 3.3.2.3 Handles. Two heavy-duty chest handles shall be provided, one on each end, above the center of gravity, for boxes 12 inches in length, 6 inches in width, and 6 inches in height and larger. The handle o
41、pening shall be not less than 3-1/2 inches wide and 1-3/8 inches deep, and shall be stopped to open at 90 degrees. Handles shall be secured and shall not pull loose or otherwise indicate structural weakness (see 4.4.1.2). 3.3.2.4 Latches. Boxes having a nominal inside length of more than 24 inches s
42、hall be provided with two snap-type trunk latches or draw-pull toggle latches on the front side near each corner, in addition to the hasp. 3.3.2.5 Protective coatings. All hinges, hasps, staples, handles, handle supports, internal framing partitions and trays, shall be of steel, securely fastened in
43、 a manner that will ensure free functioning of all parts without excessive looseness and shall be protected against corrosion by one of the fol- lowing methods: 3.3.2.5.1 Cleaning and primer treatment. Phosphate or suitable cleaning treatments shall be followed by the application of zinc chromate pr
44、imer in accordance with TT-P-645. 3.3.2.5.2 Corrosion-resisting treatments. Satisfactory corrosion-resisting treatments are as follows: (a) Electroplating of: Chromium; nickel; zinc. (b) Galvanizing: Hot dip: Metal spray (for small areas). 3.3.3 Cover fabrication. The sides of the cover shall be app
45、roximately 1 inch deep. Where covers are not formed by drawing, corners shall be. of lap construction and shall be welded either by a minimum of four spot welds or by continuous welded seams. and hasp for use of a padlock. is down and shall be as nearly tight and verminproof as practicable. The hing
46、ed box cover shall be fitted with a staple The cover shall make a close fit when the hasp Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-8-233D 81 MT I.-B- ? 33D (NAVY) 9977906 02i7329 2 3.3.4 Accessory framing and trays. Internal framing shall
47、be provided as necessary to protect contents and sealed packages from damage due to rough handling. When specified (see 6.2.11, trays, partitions, compartments, or other means shall be provided for the storage of small parts such as screws and washers. 3.3.5 Index sheet support. Each type M box shal
48、l be provided with an index sheet support located on the interior side of the cover. The support shall consist of steel Z-shaped channel strips welded to the cover to hold the index sheet from three sides, and so arranged as to accommodate a list with overall dimensions of 8-1/2 by 11 inches. permit
49、 the insertion of an index list, the support shall accommodate the index sheet in a folded position. the index sheet in position under all service conditions. Where the size of the box does not The Z-channels shall be of such width as to hold 3.3.6 Finish. Steel boxes shall be cleaned and painted, inside and out- side, in accordance with the following order of operations: (a) Complete all fabricating operations, such as welding, machining, (b) Remove all welding flux.
