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 4730 Distribution Statement A. Approved for public release; distribution is unli
3、mited. INCH-POUND A-A-59326/18B April 22, 2011 SUPERSEDING A-A-59326/18A May 1, 2003 COMMERCIAL ITEM DESCRIPTION SPECIFICATION SHEET COUPLING HALF, FEMALE REDUCER BY INTERNAL PIPE THREAD, TYPE XVIII The General Services Administration has authorized the use of this commercial item description for al
4、l federal agencies. The complete requirements for procuring couplings described herein shall consist of this document and the latest issue in effect of A-A-59326. GAS K E T CA M - L OC K I N TE R FA C E ( S E E A - A - 59326 ) TH R E A D E D I N TE R FA C E ( S E E TA B L E ) P U L L R I N G ( S E E
5、 A - A - 59326 ) NOTE: Dimensions are in inches. FIGURE 1. Coupling half. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59326/18B 2 1. SCOPE. This specification covers a Female Reducer by Internal Pipe Thread, Type XVII Coupling Half. 2. CLASSI
6、FICATION. The size of the coupling halves is designated in table I. TABLE I. Coupling half size. Dash No. Cam-Lock Nom. Size Thread NPT Gasket Reqd. 1 3 2 -11 -8 2 4 3 -8 -9 3 6 4 -8 -10 NOTE: Sizes are in inches. 3. SALIENT CHARACTERISTICS. The following characteristics may differ from those listed
7、 in the latest issue of A-A-59326. 3.1 Accessories. The coupling shall be provided with the gasket and pull rings indicated. 3.2 Threads. The coupling threads shall conform to National Tapered Pipe Thread per ANSI/ASME B1.20.1. 3.3 Cam-arms. The 6-inch, 150 psi rated coupling half shall have 4 cam-a
8、rms. The 3-inch and 4-inch coupling halves can have 2 cam-arms. 3.4 Hydrostatic test pressure. The coupling shall withstand a test pressure of 300 pounds per square inch gage (psig) for the 3 2 inch NPT and 4 3 inch NPT sizes and a test pressure of 225 psig for the 6 4 inch NPT size. 3.5 Working pre
9、ssure. The coupling shall be rated at 150 psi for the 3 2 inch, 4 3 inch and 6 4 inch sizes. 4. NOTES 4.1 Part Identification Number (PIN). The following PIN procedure is for government purposes and does not constitute a requirement for the contractor. This example describes a part numbering system
10、for latest issue of specification sheet A-A-59326/18. AA59326/18-1-SS-1; where /18 indicates a Female Reducer by Internal Pipe Thread Coupling Half, -1 indicates a 3-inch cam-locking by 2-inch NPT size; -SS indicates Stainless Steel body, and -1 indicates a style 1 coupling half. Material: A - Alumi
11、num Alloy B - Copper Alloy (Brass or Bronze) BA - Aluminum Bronze SS - Stainless Steel Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59326/18B 3 Style 1 - Style 1 couplings do not require the incorporation of a positive locking mechanism to loc
12、k the cam arms in the closed position but the cam arms shall stay in the closed position when the coupling halves are assembled. Style 2 - Style 2 couplings shall incorporate a positive locking mechanism to lock the cam arms in the closed position when the coupling halves are assembled. The locking
13、mechanism shall be manually released (the release doesnt have to stay in the released position) before the cam arms can be moved to the open position. MILITARY INTERESTS: CIVIL AGENCY COORDINATING ACTIVITY: GSA - FAS Custodians: Army - AT Preparing Activity: Navy - YD Army - AT Air Force - 99 (Proje
14、ct 4730-2011-030) Review Activities: Army - AV, GL Navy - MC, SH Air Force - 71 DLA - CC 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-,-,-
