1、 Beneficial comments, recommendations, additions, deletions, clarifications, etc. and any data that may improve this document should be sent to DAMI_STANDARDIZATIONconus.army.mil or U.S. Army RDECOM, Tank Automotive Research, Development and Engineering Center, ATTN: RDTA-EN/STND/TRANS MS #268, 6501
2、 E. 11 Mile Road, Warren, MI 48397-5000. Since contact information can change, you may want to verify the currency of this address information using the ASSIST Online database at https:/assist.daps.dla.mil. AMSC N/A FSC 5340 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unli
3、mited. INCH-POUND A-A-52406B May 6, 2010 SUPERSEDING A-A-52406A May 12, 1998 COMMERCIAL ITEM DESCRIPTION CLAMP, LOOP, MUFFLER The General Services Administration has authorized the use of this Commercial Item Description (CID) for all federal agencies. 1. SCOPE. This CID covers standard and heavy du
4、ty muffler loop clamps of various sizes. The muffler loop clamps are hereinafter referred to as clamps. 2. SALIENT CHARACTERISTICS 2.1 Materials. Materials shall be weldable low-carbon steel or material of equivalent or greater strength and characteristics (see 3.1). 2.2 Design and construction. The
5、 design and construction of the clamps shall be the prerogative of the contractor. Each clamp typically consists of one U-bolt threaded on both ends, a saddle, two hexagon nuts, and two lockwashers. Clamps are made in standard duty and/or heavy duty versions, and shall be as specified in table I. 2.
6、3 Function. The clamps shall be capable of securing the muffler to the exhaust system pipes without loosening. The clamps shall show no sign of deformation when the nuts are tightened to the applied torque specified by the manufacturer for the particular size clamp being used. 2.4 Identification and
7、 markings. Unless otherwise specified, identification and markings shall be permanent and legible and shall include, as a minimum, the manufacturers identification code (CAGE) and the Part Identification Number (PIN) (see 6.1 and 6.3). Provided by IHSNot for ResaleNo reproduction or networking permi
8、tted without license from IHS-,-,-A-A-52406B 2 TABLE I. Clamp size and duty. AA52406 Dash no. “A” dia. Duty AA52406 Dash no. “A” dia. Duty -1 1.13 S -22 4.50 S -2 1.25 S -23 5.00 S -3 1.38 S -24 1.50 H -4 1.50 S -25 1.63 H -5 1.63 S -26 1.75 H -6 1.75 S -27 1.88 H -7 1.88 S -28 2.00 H -8 2.00 S -29
9、2.13 H -9 2.13 S -30 2.25 H -10 2.25 S -31 2.50 H -11 2.38 S -32 2.75 H -12 2.50 S -33 3.00 H -13 2.63 S -34 3.25 H -14 2.75 S -35 3.50 H -15 2.88 S -36 3.88 H -16 3.00 S -37 4.00 H -17 3.25 S -38 4.38 H -18 3.50 S -39 4.50 H -19 3.75 S -40 5.00 H -20 4.00 S -41 5.50 H -21 4.38 S NOTES: 1. “A” diame
10、ter is nominal pipe diameter (see figure 1). 2. “S” specifies standard duty clamp, “H” specifies heavy duty clamp. 3. Dimensions are in inches, tolerances are 0.03 inches. 4. Heavy duty clamps AA52406-24 through -41 shall evidence markedly superior performance when compared to the manufactures stand
11、ard duty clamp. 5. Former MS dash numbers are the same as the CID dash numbers, regardless of old MS styles. Example: MS52150-1S/A or MS52150-1S/D are equivalent to AA52406-1 (see 6.1 and 6.5). 3. REGULATORY REQUIREMENTS 3.1 Recovered material. The offeror/contractor is encouraged to use recovered m
12、aterials to the maximum extent practicable, in accordance with paragraph 23.403 of the Federal Acquisition Regulation (FAR). 4. PRODUCT CONFORMANCE PROVISIONS Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-52406B 3 4.1 Responsibility for inspect
13、ion. The contractor is responsible for the performance of all inspections (examinations and tests). 4.2 Product conformance. The products provided shall meet the salient characteristics of this commercial item description, conform to the producers own drawings, specifications, standards, and quality
14、 assurance practices, and be the same product offered for sale in the commercial market. The Government reserves the right to require proof of such conformance. 5. PACKAGING. Preservation, packing, and marking shall be as specified in the contract or order (see 6.2). 6. NOTES (This section contains
15、information of a general or explanatory nature that may be helpful, but is not mandatory.) 6.1 Part or identification number (PIN). The following part identification numbering procedure is for Government purposes and does not constitute a requirement for the contractor. The PINs to be used for clamp
16、s acquired to this CID are as follows: AA 52406 - XX Dash number (see table I.) CID number. Prefix letters to indicated CID. 6.2 Addresses for obtaining copies of referenced documents. 6.2.1 Government publications. Copies of the Federal Acquisition Regulation (FAR) are available from http:/www.acqu
17、isition.gov/far/. 6.2.2 Non-Government publications. ASTM A108 “Standard Specification for Steel Bar, Carbon and Alloy, Cold Finished”; ASTM A575 “Standard Specification for Steel Bars, Carbon, Merchant Quality, M-Grades”; ASTM A1008/A1008M “Standard Specification for Steel, Sheet, Cold-Rolled, Carb
18、on, Structural, High-Strength Low-Alloy, and High-Strength Low-Alloy with Improved Formability, Solution Hardened, Bake Hardenable are available from www.astm.org or ASTM International, P.O. Box C700, West Conshohocken, PA 19428-2959. 6.3 Ordering data. Acquisition documents should specify the follo
19、wing: Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-52406B 4 a. Title, number, and date of this CID. b. Clamp PIN and quantity required. c. Whether identification and markings are other than as specified (see 2.4). 6.4 Historical design. Histor
20、ically, the following materials have proven satisfactory for the construction of the muffler clamps: Muffler component Material U-bolt Carbon steel in accordance with ASTM A575, C1010-C1025 de-scaled or ASTM A108, cold finished, C1010-C1025 Saddle Low carbon sheet or strip steel in accordance with A
21、STM A1008/A1008M Hexagon nuts Grade A steel Lockwashers Carbon Steel “A” DIAFIGURE 1. Dimension “A” of clamp. 6.5 Cross reference data. Clamps conforming to this document are interchangeable-substitutable with clamps conforming to MS52150. The CID dash numbers and the MS dash numbers are the same, e
22、xpect that the duty and style notations have been removed. The duty is now represented by the dash number (-1 through -23 are standard duty, -24 through -41 are heavy duty), and the clamp style is up to the discretion of the manufacturer. Provided by IHSNot for ResaleNo reproduction or networking pe
23、rmitted without license from IHS-,-,-A-A-52406B 5 MILITARY INTERESTS: CIVIL AGENCY COORDINATING ACTIVITY: GSA - FSS Custodians: Army - AT Preparing Activity: Air Force - 99 Army - AT Review Activities: (Project 5340-2009-019) Air Force - 71 DLA - IS NOTE: The activities listed above were interested
24、in this document as of the date of this document. Since organizations and responsibilities can change, you should verify the currency of the information above using the ASSIST Online database at https:/assist.daps.dla.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
