1、T P MIL-A- 216 18A (yep ) 6 March 1964 f KiLITARY SPECIFICATION ADAPTERS, PALLET, STEEL FOR CYLINDRICAL CONTAINERS THIS SPECIFICATION IS APPROVED FOR USE BY ALL DEPARTMENTS AND AGENCIES OF THE DEPARTMENT OF DEFENSE 1, SCOPE 1,l Scope. This specification covers the requirements for the pro- curement
2、and testing of two types of steel pallet adapters for cylindrical containers. 1.2 Classification. Pallet adapters shall be of the following types, MKs and MODS as specified (see 6.2). - Type I - Resistance welded construction (6.4) MK and MOD MK 12 MOD 1 (for 3“/50 Cartridge Tank) MK 13 MOD O (for 5
3、“/38 Cartridge Tank) MK 14 MOD O (for 5.0 Rocket Containers MK 10 MOD O Spot and Seam Weldment, Steel, Carbon and Low Alloy (Yield Strength 30,000-60,000 PSI) sampling Procedures and Tables for Inspection Marking for Shipment and Storage Qualification Test for Welders by Attributes I J.ava1 Sea Sirn
4、teJPSCammanhLCnde Ident 10001) LD 296475 Adapter, Pallet, MK 13 MOD O LD 296477 Adapter, Pallet, MK 14 MOD O LD 296478 Adapter, Pallet, MK 15 EIOD O LD 296481 Adapter, Pallet, MK 17 MOD O LD 296485 Adapter, Pallet, MK 12 MID 1 LD 296489 Adapter, Pallet, MK 16 MOD O LD 483312 Adapter, Pallet, MK 18 M
5、OD O LD 483340 Adapter, Pallet, MK 19 MOD O L 538093 Adapter, Pallet, MK 46 MOD O LD 538127 Adapter, Pallet, MK 23 MOD O LD 538128 Adapter, Pallet, MK 24 MOD O LD 538129 Adapter, Pallet, MK 25 MOD O LD 538130 Adapter, Pallet, MK 22 MOD O DL 2642761 Adapter, Pallet, MK 121 MOD O And all documents ref
6、erenced in the above listed LDs and DLs. Contractors will require only drawings of specific adapters specified in the contract, requisition or order. r- 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1 .- P 4 fi f: MIL-A-2LbLBB 81 W 7977706 042427
7、8 O W MIL-A-21618B (os) (Copies of specifications , standards , drawings and publications re- quired by suppliers in connection with specific p iocurement functions should be obtained from the procuring activity or as directed by the con- tracting officer.) 2.2 Other Publications. The following docu
8、ment forms a part of this specification to the extent specified herein. the issue in effect on the date of invitation for bids shall apply, Unless otherwise indicated, AMERICAN WELDING SOCIETY AWS A2.0 Welding Symbols (Application for copies should be addressed to the American Welding Society, 345 E
9、ast 47th Street, New York, NY 10017.) 3. REQUIREMENTS 3.1 Geaeral Requirements, 3.1.1 Preproduction Sample. Unless otherwise specified, as soon as practicable after award of contract or order, and prior to submission of any adapter for acceptance, the contractor shall furnish a preproduction sample
10、for determination of conformance to this specification. Examination-and tests shall be those specified herein, see 4.2.1. from the preproduction sample will be subject to the approval of the con- tracting officer. quantity to be shipped in the final shipment, Any changes or deviations The preproduct
11、ion sample may not be included in the 3.1.2 Construction. Unless otherwise specified in the contract or orders adapters covered by this specification shall be manufactured in strict accordance with the below listed drawings : NOMENCLATURE LIST OF DRAWINGS Adapter, Pallet, MK 12 MOD 1 Adapter, Pallet
12、, MK 13 MOD O Adapter, Pallet, MK 14 MOD O Adtapter, Pallet, MK 15 MOD O Adapter, Pallet, MK 16 MOD O Adapter, Pallet, MK 17 MOD O Adapter, Pallet, MK 18 MOD O Adapter, Pallet, MK 19 MOD O Adapter, Pallet, MK 22 MOD O Adapter, Pallet, MK 23 MOD O Adapter, Pallet, MK 24 MOD O Adapter, Pallet, MK 25 M
13、OD O Adapter, Pallet, MK 46 MOD O Adapter, Pallet, MK 121 MOD O LD 296485 LD 296475 LD 296477 LD 296478 LD 296489 LD 296481 LD 483312 LD 483340 LD 538130 LD 538127 LD 538128 LD 538129 LD 538093 DL 2642761 3.2 Welding. 3.2.1 Drawing Symbols. Welding symbols on applicable drawings shall be interpreted
14、 in accordance with American Welding Society AWS A2.0. -3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NIL-A-2LblB 1 W 7777706 OLl24279 2 e P- MIL-A-21618B (OS) 3.2.2 Resistance Welding. Resistance welding (6.3) for Type I gdapters shall be perfor
15、med in accordance with the requirements of Group B. When subjected to the acceptance testing of 4,4.2.2.1 resistance welds shall not fail under the loads specifies in applicable drawings. NOTE: MIL-W-6858, * The strength requirements of these welds for conditions of shear are called-out as a part of
16、 the weld symbol, see AWC A2.0; 2.2 or in the general notes of applicable drawings (see 3.2.1). Resistance welding shall also be capable of meeting the Quality Assurance Provisions of MIL - W - 6858, including the shear test speci- fied therein when subjected to the Production Quality Control testin
17、g of 4.4.1. 3.2.2.1 Qualification of Machines. All resistance welding machines intended for use during production shall be qualified for the applicable material and particular combination of sheet thickness required by +: MIL-W-6858. 3.2.3 Metal Arc Welding. Unless otherwise specified in the contrac
18、t, order, or on applicable drawings, metal arc welding (6.3) for Type II adapters shall be perfcmed in such a manner that it will meet all welment requirements of MIL-W-21157. 3.2.3.1 Proof of Capability and Welding Operators Qualification, As specified by* MIL - W-21157 the contractor shall be requ
19、ired to furnish proof of capability to perform this welding. qualified to meet production sample requirements as specified in MIL-STD-248, 3.2.4 Visual Qualifications. When examined as specified in 4.4.2.1, Welders must be all welding on equipment supplied under this specification shall be smooth an
20、d of unifonn contour, free from cracks, electrode pick-up, surface burn- ing and metal expulsion. 3.3 Workmanship, All surfaces and edges shall be free from sharp 4 corners, rough spots and similar defectsthat could damage items placed in the adapter or create a hazard to operating personnel. major
21、character shall be made with dies or fixtures to insure uniformity of size and.shape. assembly of the unit load. The adapters shall be constructed and finished in a manner to assure compliance with this specification. 4. QUALITY ASSURANCE PROVISIONS All bends of a Frames shall be free from distortio
22、n that will affect * 4.1 Responsibility for Inspection. Unless otherwise specified in the contract or purchase order, the supplier is responsible for the perfor- mance of all inspection requirements as specified herein, ._ sDecif.id in the contract or order, the supolier nay use his own or any othe?
23、 facilities suitable for the performance of the inspection requwemeazc specifled 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 service
24、s conform to prescribed requirements. Excep-t. as otherwise 4 . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-HIL-A-21bLB 81 m 97999Ob 0424280 7 m -. MIL-A-21618B (OS) 4.2 Classification of Tests. The examination and testing of Pallet Adapters shal
25、l be classified as: . (a) Preproduction tests, (b) Production quality control tests. (c) Lot acceptance tests. 4.2.1 Preproduction Tests. Examination and testing of the prepro- duction sample shall be made for all applicable provisions of this speci- fication. of a Government inspector prior to any
26、acceptance by the Government and need not be repeated during the life of the contract unless a change is made in design, material, or methods of construction. These examinations and tests shall be performed in Ehe presence 4.2.2 Production Quality Control Tests for Resistance Welding. Speci- mens fo
27、r production quality control tests shall be subjected to the tests of 4.4.1. 4.2.3 Lot Acceptance Tests. These tests shall be accomplished OR pallet adapters of each type being submitted to the Government for accept- tance. approval prior to the commencement of production, 4.4.2. nspection and test
28、procedures shall be submitted for Government 4 3 Sampling. 4.3.1 Resistance Welding for Production Quality Control. Sampling for pmduction quality control inspection, of resistance welding only, shall consist of three single spot- shear test specimens , fabricated,. taken and tested as specified in
29、accordance with MIL-W-6858, Group B. 4.3.2 Sampling for Lot Acceptance. The following lot acceptance tests shall be performed in accordance with MIL-STD-105: (a) Visual and dimensional examination (4.4.2.1) - Inspection To identify major, minor, or critical defects, see Level II Acceptable Quality L
30、evels (AQLs) 1.0% for major defects and 2.5% for minor defects. drawings listed in 3.1.2. In regard to critical defects class, for inspection lot sizes of 150 or less, use 100% of the lot. of 151-3200, use sample of 150 units, acceptance number zero. tion lot sizes greater than 3200, use the sample
31、size as indicated in MIL-STD-105, acceptance number zero. For inspection lot sizes For inspec- (b) Protective coating (4.4.2.3) - Inspection Level S3, Accept- able Quality Leve2 (AQL) 1.0%. (c) Preservation, packaging and packing (4.4.3) - Inspection Level S-2, acceptance number zero. 4.4 Inspection
32、. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-A-2LhLB L 9799906 OL1242L O W MIL-A-21618B (OS) 4.4. i 4.4.1.1 Examination. Specimens selected in accordance with 4.3.1 Production quality control testing for resistance welding, shall be visual
33、ly examined for compliance with the requirements of 3.2.4. 4.4.1.2 Testing. Specimens selected in accordance with 4.3.1 shall be tested to determine compliance with the requirements of MIL-W-6858, Group B, including the shear test specified therein, 4.4.2 Lot acceptance tests. 9: 4.4.2.1 Visual and
34、Dimensional Examination. Each pallet adapter selected in accordance with 4.3.2 shall be visually examined for complete- ness of manufacture, freedom of defects as described in 3.2.4., proper identification , and workmanship. Dimensional and other inspections shall be performed in accordance with lis
35、ted drawings (see 3.1.2). 4.4.2.2 Testing. 4,4.2.2.1 Resistance Welding. Each production lot shall be certified Each shear test specimen (6.3) by shear testing in accordance with 4.3.1. shall be loaded so as to place the weld in shear. when the magnitude of the shear loading is equal to or exceeds t
36、hat Welds shall not fail specified on applicable drawings or specification (see 3.2.2). C. 4.4.2.2.2 Metal Arc Welding. Each pallet adapter containing arc (6.3) welded components and which has been selected in accordance with 4.3.2 , shall be subjected to the applicable testing of MIL-W-21157, class
37、 as specified on the applicable drawings. 4.4.2.3 Protective Coating. The pallet adapter shall be examined to determine conformance to 3.1.2. 4.4.3 Preservation, Packaging and Packing. Packs of pallet adapters selected in accordance with 4.3.2 shall be examined to determine confor- mance to Sectior:
38、 5 of this specification. 5, PREPARATION FOR DELIVERY D 5.1 Preservation and Packaging. Preservation and packing shall be level C. 5.1.1 Unit Packaging, Level C. Adapter sets having more than one component shall have component parts nested and each set secured with two or more straps, QQ-S;78l, Type
39、 I, Class B, or galvanized wire binders, Individual adapters shall be properly nested. 5.2 Packing. Not applicable. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-i MIL-A-2LblB 131 = 77777Ob 0429282 2 M MIL-A-21618B (OS) - =? * 5.3 Palletizing. Co
40、mponents unitized in accordance with 5.1.3.1 shall be stacked on wood pallets to a height not 2xceeding 72 inches. Each pallet shall have wood or metal battens and shall be secured with circumferential steel strapping so as to provide a firm load. of two.?additional straps , lengthwise and widthwise
41、 , QQ-S-781 , Type I, Class B, shall be used to secure the load to the pallet. A minimum 5.4 Marking. In addition to any special marking required by the contract or order, marking shall be in accordance with MIL-STD-129. 6 NOTES 6.1 Intended Use. The pallet adapters covered by this specification are
42、 intended for use in conjunction with a pallet and steel strapping to form a palletized unit load. the position of cylindrical items or containers on a pallet, and to provide a stable base for tiered loads, These devices are required to maintain f: 6.2 Ordering data. DD Form 1423 and other related p
43、rocurement documents should specify the following: 6.2.1 Procurement requirements, (a) Title, number, and date of this specification. (b) Type and MK and MOD number of adapter being procured (see 3.1.2). (c) iihether a preproduction sample is required and, if so, how many (see 3.1.1). (d) Welding sp
44、ecifications, if different than herein required (see 3.2.2 and 3.2.3). (e) Minimum lot size, if applicable. (f) Address of activity to receive shipments of acceptable Adapters. * 6.2.2 Contract data requirements. The items of deliverable data required by this specification is cited in the following
45、paragraph: Paragraph Data requirement Applicable DID .*. 3.2.3.1 Certification, Welder Qualification The DID (Data Item Descriptions/DD Forms 1664) for the above data require- ment will be (* documented in the Department of Defense Authorized Data List (TD-3). Such data will be delivered as identifi
46、ed on the completed DID when specified on DD Form 1423 (Contract Data Requirements Lists). 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-* MIL-A-21618B (OS) 6.3 Definitions. For this document the following definitions shall apply: (a) Shear Test Specimen - A Navy - OS Project No, 3990-N133 * U. S. GOVERNMENT PRINTING OFFICE: 1975.603.766/0434 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
