1、MIL-B-1522G 71 W 7777706 0237522 2 W MIL -.B-l5228G -. 17 _l-l_-._ November 1988 SUPEHSkDlNG MIL-B -15228b 30 April 1982 MILIIAHY SPkCIlCA110N BED, BUNK, STEL, ROUND IUBE, SING-t AND DOUBLt-DkCK (CONVLHI LBLE I YPt) This specification is approved for use by all Departments and Agencies of the Depart
2、ment of Defense. 1. SCOPt 1.1 Scope. This speci fication covers the reyui rernents for component materials and their assembly into a single bunk bed with adapters for conversion to double-deck bunk beds. 1.2 ClassificatioJ. The bunk beds covered by this specification will be of the following sizes a
3、s specified (see 6.2): Size 1 - 36.0 inches wide by 79.0 inches long overall. Size 2 - 36.0 inches wide by 84.0 inches long overall. 1.2.1 Part or Identifying Number (PIN). The PIN for the bunk beds covered by this specification will consist of a “M“ prefix and the basic spccifical:lon number follow
4、ed by a hyphen and a two digit code number. The two digit code number corresponds to the size. The PINS for the two sizes of bunk beds are as follows: a. M15228-01 for size 1 bunk bed. b. M15228-02 for size 2 bunk bed. -I Beneficial comments (recommendations, additions, deletions) arid any pertirien
5、L1 data which may be of use in improving this document should be addressed to: I Document improvement Proposal (DD Form 1426) appearrng at the end of this I document or by letter. Commanding Officer (Code 156), Naval Construction Battalion Center, Port I Hueneme, CA 93043-5000, by using the self -ad
6、dressed Standardization I -_I_- - I _I-_ AMSC N/A FSC 71 05 _-_-_I DISTRIBUTION STATEMENT A. Approved for public release; disl.ribution is unlimited. I THIS DOCUMENT CONTAINS 3/ PAGES. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-B-LC22G 71 W
7、999990b 0239523 = MIL E3-1522G 2, APPLICABLE. DOCUMtNI S 2.1 .I Seeci_SlcU_i._o,n_s_andsC8ndards. lhe following specifications and standards form a part of this documenl to the extent specified herein. otherwise specified, the issues of these documents are those listed in the issue of the Department
8、 of Defense Index of Specifications and Standards (DODISS) and supplcmcnt thereto, cited in the so1icitat:ion (see 6.2). Unless SI)ECIbICAI IONS F F-. DER AL 1T -E429 PIP -8 a601 PPP-43 621 PP I -E! -636 PIP -B -640 PfP -e1 .76 flf *I -97 I- Strapping, Steel, and Seals. = Cleaning Methods for Ferrou
9、s Surfaces and Pretreatments for Organic Coat, ngs . Lnamel, Alkyd, Semi .Gloss. Boxes, Wood, Cleated .Plywood. - Boxes, Wood, Nailed and Lock-Corner. - Boxes, Shipping, Fiberboard. - Boxes, Fiberboard, Corrugated, Triple -Wall. .- lape, Packaging, Paper (For Carton Sealing). lape, Packaging/lndustr
10、ial, Filament Reinforced. MILIIAHY MIL -L -10541 - Liners, Case, arid Sheet, Overwrap; Water -Vaporproof or Waterproof, Flexible. SiANUAKS PtD-SID-151 - Metals, Test Methods. FkD -SI-595 - Colors. MILI IAHY MIL-SID -105 - Sampling Procedures and Tables for Inspection by MII.-SID-%9 - Marking for Shi
11、pment and Storage. Attri butm. (Unless otherwise indicated, copies of Federal arid Military specifications and standards are available from the Naval PublicatJons and Forms Center (ATIN: NPODS), 5801 labor Avenue, Philadelphia, PA 19120-5099.) 2 Provided by IHSNot for ResaleNo reproduction or networ
12、king permitted without license from IHS-,-,-MIL-B-L522G 71 I 777770b 0237524 b NIL-B -1 5228G 2.2 Non-Government publications. lhe following documents form a part of this document to the extent specified herein. Unless otherwise specified, the issues of the documcrits which are DOD adopted are those
13、 listed in the issue of the DODISS cited in the solicitation. Unless otherwise specified, the issues of documents not listed irr the DODISS are the issues of the documents cited in the solicitation (see 6.2). AMERICAN IRON AND SIkEL INSTIIUTk (AISI) AISI - Steel Products Manual. (Application for cop
14、ies should be addressed to the American Iron and Steel Insti tute, 150 East Forty-Second Street, New York, N. Y. 1 O01 7. ) AMERICAN SOCILIY FOR 1kSTING AND MATERIALS (ASTM) ASTM A 36 - Structural Steel. ASTM A 366 .- Steel, Sheet, Carbon, Cold-Rolled, Commercial Quality. ASTM A 513 - Electric-Resis
15、tance Welded Carbon and Alloy Steel ASTM A 569 - Steel, Carbon (0.15 Maximum, Percent), Hot -Rolled Sheet ASTM D 3951 - Commercial Packaging Mechanical Tubing. and Strip Commercial Quality. (Applicatjon for copies should be addressed to the American Society for Testing and Materials, 1916 Race Stree
16、t, Philadelphia, PA 19103.) AHERICAN WELDING SOCIE.IY (AWS) AWS A3.0 - Terms and Definitions. (Application for copies should be addressed to the American Welding Society, Inc., 2501 Northwest 7th Street, Miami, FL 33125.) (Non-Government standards and other publications are normally available from t
17、he organizations that prepare or which distribute the documents. documents 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 thetext of this specification and the references cited herein (except for asso
18、ciated detail specifications, specifications sheets or MS standards), the text of this specification takes precedence. Nothing in this specification, however, supersedes applicable laws arid regulations unless a specific exemption has been obtained. 3 Provided by IHSNot for ResaleNo reproduction or
19、networking permitted without license from IHS-,-,-MIL-B-LC22G 71 U 777970b 0237525 8 MIL-B -1 5228G 3, REQUIRtMtNI S 3.1 lescription. lhe bunk bed (see Figure 1) shall be of all steel 1 three-piece construction consisttng of matching round steel tube, head and foot ends, a wedge type corrier lock wi
20、th four bearing points, and a fully- framed sprqng unit with sinuous (no-sag type) spring fabric, as shown in Figures 2 and 3. lhe bunk bed shall be of the size specified (see 6.2). 3.2 :5rgt-araclg. When specified (see 6.2), a sample shall be subjected Lo first artlcle inspection (see 4.2.1 and 6.4
21、). 3.3 at upper and lower extensions on male lock end and the two studs. The spring fabric shall consist of 18 equally spaced transverse strands of sinuous (no-sag type) spring fabric for size 1 bed and 20.strands for size 2 bed. Each strand shall be connected to the adjacent strand with five rows o
22、f links (see Figure 4) clinched over the spring fabric. The ttZ“ hook ends of each strand shall be inserted in holes in horizontal flange of each side angle in a manner to provide secure retention; free from scratching and tearing hazard. Each end strand shall be attached to the end angle with five
23、helical springs (see Figure 4). Each end of 3.6.3 Adapters. When specified (see 6.2), each pair of bunk beds shall be provided with a set of four adapters for converting to a double-deck bed. Adapters shall consist of a straight section of steel tubing 10.50 inches long with an outside diameter of 1
24、.50 inches and a wall thickness of 0.083 inch and inserts (inner sleeves) (see 3.5.3) which shall project 3.0 inches from each end as shown in Figure 13. and shall be further secured with two drive screws. ends shall be beveled to ease insertion into bed posts. Inserts shall be adjusted as necessary
25、 to fit snugly, after painting, into top of lower bed and bottom of upper bed posts when caps and shoes are removed. Adapters shall be examined for assembly and disassembly as specified in 4.4.2. Insert shall be a drive fit within the outer tube Outer edges of:insert Provided by IHSNot for ResaleNo
26、reproduction or networking permitted without license from IHS-,-,-HIL-B-LS22G 71 M 7777706 0237527 5 =- MIL-B -1 52286 3.7 Trea_tMe,n_y=nd_eai. All surfaces of the bunk beds, except plated steel shoes, shall be painted. Application of finish shall produce smooth and uniform surfaces without runs, wr
27、inkles, and shall be free from objectionable defects such as scale under the finish, rust, or discoloring. 3.7.1 S.e_p_rexwg-o TABLE I. _C1assif-cation of defects - Coritinued. I I I I I I I I I I I I I I I I I I I I I I I I .I I I I I I I I I I I I I I I I I I I _111-1_- 1 iass i fi cati on I Defec
28、t I Requirement I -I -Iparwh- 102 I Parts not manufactured to I 3.3 and 3.6 I I 103 I I 104 I 105 I I 106 I I 107 I I 108 I I I 1 o9 I 110 111 112 113 114 115 116 117 I I I I I I I I I I I I I I I I I I I I I I 1 I I interchangeable standards. I I I I I I I I Steel su.rfaces not as specified. I 3.4.
29、1 Steel components not as specified. I 3.4.1.1 thru Epoxy-powder not as speci Fied. I 3.4.2 Steel caps not as specified, I 3.5.1 I 3.4.1.6.3 Bed shoes not as specified. I 3.5.2 Overall dimensions not as specified. I 3.6 and Bed end dimensions not as specified. I 3.6.1 and I Figure 1 Wall thickness o
30、f main posts not as specified. Wall thickness of horizontal and intermediate vertical tubes not as specified. Tube connectJons not as specified. Snoes not removable without use of tool s. Female corner locks not welded as specified. Bed spring urilt angle frame members not welded as specified. Long
31、leg of angle sides not in vertical position as specified. Stretcher braces not as specified. 11 I Figure 8 I I I I I I I I I I 3.6.1 and I Figure 6 I I 3.6.2 and I Figures 10 I and 11 I I 3.6.2 I I I 3.6.1 I 3.6.1 I . 3.6.1 I .3.6.1 I 3.6.2 Provided by IHSNot for ResaleNo reproduction or networking
32、permitted without license from IHS-,-,-HIL-B-lS22G 71 777770b 0237533 7 a i Major i I (Continued) I I 118 119 120 121 122 123 124 125 126 127 128 129 130 Stretcher braces not located as speci fi ed , Corner locks not located as specifled. Number of strands of spring fabric not as specified. Spring f
33、abric loose and not attached as speci f ied, Hook ends of spring fabric not free of scratching and tearing hazard. Adopters not as specified (when adapters are required) Four adapters not provided for each set of two beds (when adapters are required). Dimensions and thicknesses for adopters not as s
34、pecified. Outer edges of adapter insert ends not beveled. Finish not without runs, wrinkles, or areas of thin or no film, or other defects such as indication of rust or scale under finish or discoloring. Surfaces to be painted not prepared as specified. Thickness of finish coat less than as specifie
35、d. Coating baking cycle not as specified. - Requirement I paragraph I I 3.6.2 3.6.2 3.6.2 3.6.2 3.6.2 3.6.3 3.6.3 3.6.3 3.6.3 3.7 3.7.1 3.7.2 3.7.2 12 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I MIL-B-L5228G 71 7779706 0239539 7 m MIL-B-l5%2G T
36、ABLE 1. lassification of defects - Continued. _-_- )Classification I Defect I Requirerrient I I I IAa4raFh_ I I Major I I I I (Continued) I I I I I I I I 131 Welding not as specified. 1 3.9.1 I I I I I I 132 I Studs not secured as specified. I 3.9.1 1 I I I I I I marking not as specified. I arid 5.3
37、 I I 133 I Preservation, packaging, and I 5.1, 5.2, I I I Minor I 201 I 202 I I I I 1 I I 205 I I 203 I 204 I I I I I I Edges of angles not rounded. I 3.4.1.2 I I I I 3.7.2 I I I Pull necessary to remove steel caps I 3.6.1 I not as specified. I I I I Pull necessary to remove steel shoes I 3.6.1 I no
38、t as specified. I I I I Identification marking missing, I 3.8 I illegible, or not as specified. l I Color not as specified. I 3.4.2 and I 4.4.2 Adapter assembly examination. When adapters are procured separately or with beds, samples shall be examined for ease o double-decking. Assembly and disassem
39、bly with beds or steel tubes o same diameter and wall thickness as bed main posts as specified herein shall be performed manually without the use of tools and shall be a snug fit. Inside diameter of bed posts or steel tubes shall be checked periodically for proper dimensions (see Figure 13). 4.5 Pes
40、ts. 4.5.1 Metals. Specimens of metal components shall be tested in accordance with FD-STD-51 wherever applicable. 4.5.2 Bed test. A load of GOO pounds shall be placed across the side angles of spring unit of an assembled bed, midway between the bed ends. The test load bottom or base shall be approxi
41、mately 18.0 inches wide. At the center of the spring unit, the deflection of the spring unit side angles shall be not greater than 0.4375 inch with the 600 pound load in place. removal of the test load, the spring unit shall return to its or,iginal position with no visible distortion in the bed.lock
42、s or spring unit frame. Upon 13 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-B-L522G 75 H 9999906 0237535 O U MIL .B -1 522G 4.6 at each corner, the corner lock of one unit bears on the angle of the other unt. lha assembly shall be secured in
43、this position by the application of two flat steel straps conforming to QQ-S-8i at each end which completely encircle the nici.in posts arid the end angles. Each strap shall be located between the horizontal tube arid the side angle and shall be drawn as tight as possible to prov=de a compact norist
44、iiftirig assembly. lhe width of the strapping shall be not leas than 0.95 inch arid shall be prevented from coming in direct contact with riictal surfaces of the assembly by means of the applied cushioning or by use of additional separating material. When adapters are furnished with the bunk beds (s
45、ee 3.6.3), they shall be cushioned with the materials specified Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-B-15228G 71 7777706 0237536 2 W MIL-B-152286 herein and secured in an appropriate location inside the bed spring units with filament r
46、einforced tape conforming to PPP-5-97 or flat steel strapping conforming to QQ-S-81. 5.1.1.1 Adapters (procured separatelyl-. Adapters procured separately from The adapters bunk beds shall be packaged in quanttes of four in a close-fitting fiberboard box conforming to PPP-B-636 with a bursting stren
47、gth of nat less than 175 pounds per square inch and the box closed and secured. shall be cushioned to prevent contact between pieces. 5.1 .2 Commercial Bunk beds (with adapters when furnished), and adapters (when furnished separately) shall be preserved in accordance with ASTM D 3951. 5.2 Packing. P
48、acking shall be level A, B, or commercial as specified (see 6.2). 5.2.1 Level A. Two complete single bunk beds, packaged as specified in 5.1.1, shall be packed in a close-fitting box conforming to PPP-B -601 overseas type or PPP-6-621, class 2. The box shall be close-fitting such that the cushioning material on the outermost parts of the assembly bears against the inner surfaces of- the exterior shipping container in a snug mariner. The box shall be provided with a waterproof case liner conforming to MIL-L-10547, sealed in accordance with the appendix thereto. 5.2.1.1 Adapters (procured
