1、AMSC N/A FSC 9320 A-A-55451A 5 May 2011 SUPERSEDING A-A-55451 31 August 1995 COMMERCIAL ITEM DESCRIPTION RUBBER, SILICONE; CHANNEL, NONMETALLIC, SHAPE 3 The General Services Administration has authorized the use of this Commercial Item Description for all Federal Agencies. 1. SCOPE. This commercial
2、item description (CID) covers a silicone rubber nonmetallic channel, shape 3 (see figure 1). 2. CLASSIFICATION. The silicone rubber shall be of the following classes and grades as specified. The designated grade number corresponds to the nominal Shore Durometer A hardness value. Class 1A Low tempera
3、ture resistant Grade 40, 50, 60, 70, and 80 Class 1B Low temperature resistant and low compression set at high temperature Grade 40, 50, 60, 70, and 80 Class 2A High temperature resistant Grade 25, 40, 50, 60, 70, and 80 Class 2B High temperature resistant and low compression set Grade 25, 40, 50, 6
4、0, 70, and 80 Class 3A Low temperature, tear and flex resistant Grade 30, 50, and 60 Class 3B Tear and flex resistant Grade 30, 50, 60, 70, and 80 INCH-POUND Comments, suggestions, or questions on this document should be addressed to Defense Supply Center Philadelphia (DSCP), ATTN: DSCP-NASA, 700 Ro
5、bbins Avenue, Philadelphia, PA 19111-5096 or e-mail to dscpg&inspecommentsdla.mil . Since contact information can change, you may want to verify the currency of this address information using ASSIST Online database at https:/assist.daps.dla.mil .Provided by IHSNot for ResaleNo reproduction or networ
6、king permitted without license from IHS-,-,-A-A-55451A 2 3. SALIENT CHARACTERISTICS. 3.1 Dimensional and physical requirements. Dimensional and physical requirements shall conform to figure 1. Dimensional tolerance shall conform to the applicable commercial tolerance specified in CID A-A-59588. .094
7、2 places.440.100.233R .0944 placesFigure 1. Dimensional and physical requirements. Notes: 1. Dimensions are in inches. 3.2 Material. Material shall be silicone rubber formulated and processed to meet the physical and mechanical properties per the specified class and grade, when tested in accordance
8、with ASTM test methods specified in Table I of CID A-A-59588. 3.3 Color. Unless otherwise specified, the color of the silicone rubber shall be the natural color of the compound furnished. 3.4 Workmanship. The end product shall be clean, smooth finished, and free from dirt, flash or rough edges. 3.5
9、Metric products. Products manufactured to metric dimensions will be considered on an equal basis with those manufactured using inch-pound units, provided they fall within specified tolerances using conversion tables contained in the latest revision of ASTM SI 10, and all other requirements of this c
10、ommercial item description are met. If a product is manufactured to metric dimensions and those dimensions exceed the tolerances specified in the inch-pound units, a request should be made to the contracting officer to determine if the product is acceptable. 4. REGULATORY REQUIREMENTS. The offeror/c
11、ontractor is encouraged to use recovered materials to the maximum extent practicable, in accordance with paragraph 23.403 of the Federal Acquisition Regulation (FAR). 5. PRODUCT CONFORMANCE. 5.1 Product conformance. The products provided shall meet the salient characteristics of this commercial item
12、 description, conform to the producers own drawings, specifications, standards, and quality 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. Provided by IHSNot for ResaleNo reproduction or
13、networking permitted without license from IHS-,-,-A-A-55451A 3 6. PACKAGING. Preservation, packing, and marking shall be as specified in the contract or order. 7. NOTES. 7.1 Part identification number (PIN): the following part identification numbering procedure is for government purposes and does no
14、t constitute a requirement for the contractor. The PINs to be used for items acquired to this description are created as follows: AA55451 001 A 7 Grade 2 =25Clas 330 A =1A 4 =4BB 550 C =2A 6 =6DB 770 E =3A 8 =8FB N =NADimensions per Figure 1 Basic CID number 7.2 Ordering data. The contract or order
15、should specify the following: a. Title, number, and date of this CID. b. Class and grade required. c. Length. d. Color required if other than natural color of compound furnished. e. Packaging requirements. 7.3 Source of documents. 7.3.1 ASTM standards. ASTM standards are available from the ASTM Inte
16、rnational, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959 or online at http:/www.astm.org . 7.3.2 FAR. The Federal Acquisition Regulation is available from the Superintendent of Documents, U.S. Government Printing Office, Washington, DC 20402 or online at http:/www.arnet.gov/far . 7.3.3 Gov
17、ernment documents. Federal and military documents are available online at https:/assist.daps.dla.mil/quicksearch/ or from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094. 7.4 Utilization caution. Use of this material in items that may come in con
18、tact with human skin, food, or portable water is not recommended without prior approval of the appropriate medical service. 7.5 Key words. Class Flex resistant Grade Low compression Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-55451A 4 7.6 Cha
19、nges from previous issue. Marginal notations are not used in this revision to identify changes with respect to the previous issue due to the extent of the changes. Military interests: Custodians: Preparing activty: Army MR DLA - IS Navy AS Air Force - 11 (Project 9320-2011-011) NOTE: The activities
20、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 https:/assist.daps.dla.mil . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
