1、 A-A-59452B 14 October 2008 SUPERSEDEING A-A-59452A 14 March 2005 COMMERCIAL ITEM DESCRIPTION HOSE, METAL The General Services Administration has authorized the use of this commercial item description (CID) as a replacement for WW-H-1053A for all federal agencies. 1 SCOPE 1.1 Scope. This commercial
2、item description covers flexible metal hose. Class 1 metal hose is intended for use as air ducts or speaking tubes and other applications requiring flexible hose but not for the conveyance of liquids. Class 2 metal hose is intended for use with carburetor preheating systems, exhaust connections, and
3、 other applications requiring flexible metal hose with heat-resistant properties up to 1200F. 1.2. Classification. The metal hose shall be of the following classes, types, and composition. Class 1 Aluminum Alloy Type 1 Unpacked Class 2 Corrosion-Resistant and Heat-Resistant Steel Type I Unpacked Typ
4、e II Copper-Wire Packed Composition A Austenitic, corrosion-resistant steel, heat-treatable Composition B Martensitic, corrosion-resistant steel, heat-treatable Composition C Ferritic, corrosion-resistant steel AMSC N/A FSC 4720 DISTRIBUTION STATEMENT A. Approved for public release; distribution is
5、unlimited. INCH-POUND Beneficial comments, recommendations, additions, deletions, clarifications, etc. and other data that may improve this document shall be sent to Commander, US Army Aviation and Missile Command, ATTN: AMSRD-AMR-SE-TD-ST, Redstone Arsenal, AL 35898-5000, or emailed to malinda.allc
6、orn1us.army.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59452B 22 SALIENT CHARACTERISTICS 2.1 Materials. 2.1.1 Class 1. The aluminum metal hose shall be made from material conforming to SAE AMS-QQ-A-250 and ASTM B 209. 2.1.2 Class 2. The
7、 steel used in the fabrication of composition A metal hose shall conform to Aerospace Material Specification (AMS) 5510 and 5512. Steel used in the fabrication of composition B and composition C metal shall conform to ASTM A240, ASTM A666 and ASTM A693. 2.1.3 Packing materials. The copper wire packi
8、ng used in the construction of type II shall be of a proper size to fill the packing groove and to permit the bending diameter specified. 2.2 Design. The hose shall be of the four-wall interlocking design made by helically coiling a continuously formed strip of the specified material. The width of t
9、he strip and the pitch of the helix shall be such as to allow the completed hose to meet the bending requirements specified herein. The hose shall not freely unravel or show loose ends when cut. 2.2.1 Thickness of strip metal. The thickness of strip metal shall be 0.012-inch minimum for all sizes of
10、 metal hose that are 1-inch inside diameter and larger. The thickness of strip metal shall be 0.010-inch minimum for all sizes of metal hose under 1-inch inside diameter. 2.3 Construction. 2.3.1 Type I hose. Type I hose shall be constructed as shown in Figure 1. 2.3.2 Type II hose. Type II hose in s
11、izes over - inch diameter shall be so formed as to create a definite packing groove in the profile to hold the packing in its proper place. The hose construction shall be as shown in Figure 2. For hose -inch or less inside diameter, packing may be inserted without forming a definite packing groove.
12、Figure 1. Type 1 hose construction. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59452B 3Figure 2. Type II hose construction. 2.4 Size and dimension. 2.4.1 Inside diameter. The inside diameter shall be within the tolerances specified in TABLE
13、I. TABLE I. Tolerances. Tolerance Inside diameter (inches) Outside diameter (if specified) (inches) Size (inches) Plus Minus Plus Minus 2 2 0.015 0.020 0.000 0.000 0.000 0.000 0.020 0.030 2.4.2 Outside diameter. Unless otherwise specified, the outside diameter shall be the minimum at which conforman
14、ce is possible with the other requirements of this CID. 2.4.3 Length. The hose shall be furnished in lengths as specified in the contract or purchase order. 2.5 Bending. Hoses shall be sufficiently flexible as shown in TABLE II. TABLE II. Bending requirements. INSIDE DIAMETER SIZE CLASS I TYPE I CLA
15、SS 2 TYPE I CLASS 2 TYPE II 1/2 in A A A 1/2 in A A B A Shall be able to be bent at an angle of 180 over a diameter of 9 times the specified inside hose diameter without straining or permanently damaging the hose walls. B Shall be able to be bent at an angle of 180 over a diameter of 12 times the sp
16、ecified inside hose diameter without straining or permanently damaging the hose walls. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59452B 42.6 Workmanship. Workmanship shall be of the quality necessary to produce metal hose that is free from
17、all defects and functions properly in service. 3. REGULATORY REQUIREMENTS 3.1 Regulatory requirements. The offeror/contractor is encouraged to use recovered materials in accordance with 23.403 of the Federal Acquisition Regulation, (FAR). 4. PRODUCT CONFORMANCE PROVISIONS 4.1 Product conformance. Th
18、e products provided shall meet the salient characteristics of this Commercial Item Description, conform to the producers own drawings, specifications, standards, and quality assurance practices, and be the same product offered for sale in the commercial marketplace. The Government reserves the right
19、 to require proof of such conformance. 4.2. Market acceptability (MA). The following market acceptability criteria are necessary to document the quality of the product to be provided under this CID. 4.2.1 Time requirement. The company producing the item must have been producing a similar product mee
20、ting or exceeding the requirements contained within this CID for at least two years. 4.2.2 Production requirement. The company must have sold 1000 units which met or exceeded the requirements contained within this CID through the commercial market within the past two years. 4.3 Inspection requiremen
21、ts. Bid samples may be required for CID items when necessary to ensure product quality. 4.3.1 Sampling for visual examination. Sampling for fill, color, workmanship, packaging, packing, and marking may be performed on one unit package. 4.3.2 Sampling for testing. Unless otherwise specified, the samp
22、le shall consist of one sample approximately equal in weight and volume to a unit package drawn from a single homogenous mixture. 5. PACKAGING 5.1 Packaging. Preservation, packaging, and marking shall be as specified in the contract or order. 6. NOTES 6.1 Part identification (PIN). The following par
23、t identification number procedure is for Government purposes and does not constitute a requirement for the contactor. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59452B 5The PIN used for flexible, metal hoses acquired to this CID is created a
24、s follows: AA 59452 X X X XXX Length designator in inches. Last character represents eighths of an inch. Composition (A Austenitic, corrosion-resistant steel, nonheat-treatable, B-Martensitic, corrosion-resistant steel, heat-treatable, C Ferritic, corrosion-resistant steel) Type (I Type I, II Type I
25、I) Class (1 Aluminum Alloy, 2 Corrosion-Resistant and Heat-Resistant Steel) CID Number Designates aCID 6.2 Source of documents. The Code of Federal Regulations (CFR) may be obtained from the Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 20402. ASTM documents may be o
26、btained from the American Society for Testing and Materials, 100 Barr Harbor Drive, West Conshohocken, Pennsylvania 19428-2959. AMS documents may be obtained from SAE International, 400 Commonwealth Drive, Warrendale, Pennsylvania 15096-001. 6.3 Subject term (keyword) listing. Hose, Aluminum Alloy,
27、Flexible Hose, Aluminum Alloy, Corrosion-Resistant Wire Packed Wire Packed, Copper Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59452B 6Custodian: Preparing Activity: Army MI Army -MI Air Force 99 Review Activities: Project Number DLA CC 4720-
28、2008-035 NOTE: The activities listed above were interested 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 http:/assist.daps.dla.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
