1、AMSC N/A FSC 9320 A-A-55757A 13 February 2012 SUPERSEDING A-A-55757 11 September 1995 COMMERCIAL ITEM DESCRIPTION RUBBER, SILICONE; GASKET, SHAPE 13 The General Services Administration has authorized the use of this Commercial Item Description for all Federal Agencies. 1. SCOPE. This commercial item
2、 description (CID) covers a silicone rubber gasket, shape 13 (see figure 1). 2. CLASSIFICATION. The silicone rubber shall be of the following class and grade as specified. The designated grade number corresponds to the nominal Shore Durometer A hardness value. Class 2B High temperature resistant and
3、 low compression set Grade 40 3. SALIENT CHARACTERISTICS. 3.1 Dimensional and physical requirements. Dimensional and physical requirements shall conform to Figure 1 and Table I. Dimensional tolerances shall conform to the applicable commercial tolerances specified in CID A-A-59588. Figure 1. Gasket.
4、 INCH-POUND Comments, suggestions, or questions on this document should be addressed to Defense Supply Center Philadelphia (DSCP), ATTN: DSCP-NASA, 700 Robbins Avenue, Philadelphia, PA 19111-5096 or e-mail to dscpg&inspecommentsdla.mil . Since contact information can change, you may want to verify t
5、he currency of this address information using ASSIST Online database at https:/assist.daps.dla.mil . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-55757A 2 TABLE I. Part Numbers and Dimensions. Part No. A Aperture Diameter B Outside Diameter Pa
6、rt No. A Aperture Diameter B Outside Diameter AA55757-001D4 17.625 18.875 AA55757-006D4 17.125 18.375 AA55757-002D4 19.000 20.375 AA55757-007D4 16.375 17.312 AA55757-003D4 16.625 18.250 AA55757-008D4 17.438 18.375 AA55757-004D4 18.375 19.375 AA55757-009D4 16.438 17.375 AA55757-005D4 16.375 18.375 AA
7、55757-010D4 15.375 16.312 Notes: 1. Dimensions are in inches. 2. Nonmetallic hardness rating 35.0 min and 45.0 max. Shore Durometer A. 3. Temperature rating: -62C to 218.50C (-80F to 450F) 4. Cross-sectional shape style: 164. 5. Cross-sectional thickness: .125. 3.2 Material. Material shall be silico
8、ne rubber formulated and processed to meet the physical and mechanical properties per the specified class and grade, when tested in accordance 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 co
9、lor 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 Metric products. Products manufactured to metric dimensions will be considered on an equal basis with those manufactured using inch-pound units, provided the
10、y fall within specified tolerances using conversion tables contained in the latest revision of ASTM SI 10, and all other requirements of this commercial item description are met. If a product is manufactured to metric dimensions and those dimensions exceed the tolerances specified in the inch-pound
11、units, a request should be made to the contracting officer to determine if the product is acceptable. 4. REGULATORY REQUIREMENTS. The offeror/contractor is encouraged to use recovered materials to the maximum extent practicable, in accordance with paragraph 23.403 of the Federal Acquisition Regulati
12、on (FAR). 5. PRODUCT CONFORMANCE. 5.1 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 assurance practices, and be the same product offered for sale in
13、the commercial market. The government reserves the right to require proof of such conformance. 6. PACKAGING. Preservation, packing, and marking shall be as specified in the contract or order. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-55757A
14、 3 7. NOTES. 7.1 Part 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 items acquired to this description are created as follows: AA55757 001 D 4 Grade 4 = 4
15、0 Class D = 2B Dash number 001 thru 010 Basic CID number 7.2 Ordering data. The contract or order 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 requiremen
16、ts. 7.3 Source of documents. 7.3.1 ASTM standards. ASTM standards are available from the ASTM International, 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.
17、 Government Printing Office, Washington, DC 20402 or online at http:/www.arnet.gov/far . 7.3.3 Government 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, Philad
18、elphia, PA 19111-5094. 7.4 Utilization caution. Use of this material in items that may come in contact with human skin, food, or portable water is not recommended without prior approval of the appropriate medical service. 7.5 Key words. Class Grade Low compression 7.6 Changes from previous issue. Ma
19、rginal notations are not used in this revision to identify changes with respect to the previous issue due to the extent of the changes. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-55757A 4 Military interests: Civil Agency Coordinating Activit
20、y: GSA-FAS Custodians: Preparing activity: Army MR DLA - IS Navy AS Air Force - 11 (Project 9320-2012-012) 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 https:/assist.daps.dla.mil . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
