1、 A-A-52Y97 m 9999974 0365268 95T m METRIC A-A- 52 49 7 August 3, 1994 SUPERSEDING MS500037A 16 February 1978 COMMERCIAL ITEM DESCRIPTION HOOK, TOWING: HEAVY (FOR VEHICLES 36 METRIC TONNES AND OVER) (METRIC) The General Services Administration has authorized the use of this Commercial Item Descriptio
2、n (CID) for all federal agencies. 1. SCOPE. This CID covers the requirements ?or a heavy towing hook which is used for towing vehicles weighing 36 metric tonnes and over. The hook interfaces with towing lug which is attached to the vehicle to be towed. 2. SALIENT CHARACTERISTICS. 2.1 Materials. Mate
3、rials shall be of forging alloy steel in accordance with Unified Numbering System (UNS) H41400 to H41500, H43370, H43400, H51400 to H51500, H86400 to ?386500, H87400, and H87420. The use of recovered materials made in compliance with regulatory requirements is acceptable providing that all requireme
4、nts of this CID are met (see 5.5). 2.2 Heat treatment. The hooks shall be quenched, tempered, and hardened to 271-327 Brinell Hardness Number (BHN). 2.3 Design and construction. Hooks shall be designed and constructed in accordance with figure 1 or a suitable interchangeable towing hook. 2.4 Finish.
5、 The hooks shall be finish treated in accordance with Chemical Agent Resistant Coating (CARC) painting procedure specified in Army Drawing 12369003. The top coat color shall be green 383. Beneficial comments, recommendations, additions, deletions clarifications, etc. and any other data which may imp
6、rove this document should be sent by letter to: U.S. Army Tank-Automotive Command, ATTN: AMSTA-GLC, Warren, MI 48397-5000. I FSC 2540 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license
7、 from IHS-,-,-A-A-52477 7977774 OLb52b7 396 PIN Former MS Part no. A52497-1 MS500037-1 A-A- 5 2 49 7 Former Part no. 7087806 160.3 :,:i2 4 50-8 f +- 108.0 .38 DIA .ES IN LINE NOTES : 1. Dimensions are in millimeters. Unless otherwise specified, forging tolerance is - + 1.60 and maximum draft angle i
8、s 7O. 2. All machined surfaces shall be 3.2 micrometers where roughness symbol d is shown. 3. The use of asterisks (*) indicates international interests. All burrs and sharp edges shall be removed. FIGURE 1. Hook, towing, heavy. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted
9、without license from IHS-,-,-A-A-52497 m 9999974 0365270 O08 9 A-A-52497 2.5 Identification markings. Identification markings shall be permanent and legible and shall include, as a minimum, the part identification number (PIN), A52497-1, the manufacturers CAGE code (or equivalent identification) the
10、 manufacturers part number, a steel heat code and foundry trademark. 3. OUALITY ASSURANCE PROVISIONS. 3.1 Responsibility for inspection. The contractor is responsible for the performance of all inspections (examinations and tests). 3.2 Contractor certification. The contractor shall certify and maint
11、ain substantiating evidence that the product offered meets the salient characteristics of this CID and that the product conforms to the producers own drawings, specifications, workmanship standards, and quality assurance practices. Items with known defects shall not be submitted for Government accep
12、tance. The Government reserves the right to require proof of such conformance prior to the first delivery and thereafter as may be otherwise provided for under the provisions of the contract. 4. PRESERVATION, PACKAGING, PACKING, LABELING, AND MARKING. Preservation, packaging, packing, labeling, and
13、marking shall be as specified in the contract or order (see 5.2). 5. NOTES. (This section contains information of a general or explanatory nature that may be helpful, but is not mandatory.) 5.1 Addresses for obtaining copies of referenced documents. 5.1.1 Army drawing. Copies of Army Drawing 1236900
14、3 “Paint Systems for Steel, Exterior Surfaces, Green 383“ are available from the Contracting Officer, U.S. Army Tank-Automotive Command, Warren, MI 48397-5000. 5.1.2 Non-Government publication. Copies of metal in the Unified Numbering System (UNS) publication are available from the Society of Automo
15、tive Engineers, Inc. (SAE), 400 Commonwealth Drive, Warrendale, PA 15096-0001. 5.2 Ordering data. Acquisition documents must specify the following: a. Title, number, and date of this CID. b. PIN and quantity required. c. Selection of applicable level and packaging requirement. d. Issue of Department
16、 of Defense Index of Specifications and Standards (DODISS) to be cited in the solicitation, and if required, the specific issue of individual documents referenced. 5.3 Cross reference data. Hooks acquired to this CID are substitutable/ interchangeable with hooks conforming to MS500037A. 5.4 Internat
17、ional standardization agreements. Certain dimensions marked with asterisks (*) in figure 1 are congruent with corresponding dimensions for the towing lug, MS500004, which is the subject of international standardization agreements, North Atlantic Treaty Organization (NATO STANAG 4019) and American, 3
18、 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A- 5 2 4 9 7 British, Canadian - Army-STD-132. When amendment, revision, or cancellation of this CID is proposed that will modify the international agreement concerned, the preparing activity will ta
19、ke appropriate action through international standardization channels, including departmental standardization offices, to change the agreement or make other appropriate accommodations. 5.5 Regulatory requirements. The offeror/contractor is encouraged to use recovered materials in accordance with Publ
20、ic Law 94-580 to the maximum extent practicable. MILITARY INTERESTS: Custodian Army - AT Review activity DLA-CS CIVIL AGENCY COORDINATING ACTIVITY: GSA - FSS PREPARING ACTIVITY: Army - AT (Project 2540-0413) User Activities Army - AR Navy - MC 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
