USCG Engineering Logistics Center, Mail Stop 26, Bldg. 31, 2nd Floor, 2401 Hawkins Point Rd., Code 048, Baltimore, MD 21226-5000

J -- FINAL MACHINE WORK ON 2 ASSEMBLED RUDDERS SOL DTCG40-97-Q-80076 DUE 071697 POC Robert Orofino, Purchasing Agent, (410) 762-6503 CWO W. Middleton, Contracting Officer, (410) 762-6499. Please Send Inquiries to fax number (410) 762-6008. Provide contractor services to perform final machine work on 2 each completely assembled rudders. Machine work will be on the socket casting to conform with dimensions and tolerances for all machined surfaces in accordance with reference A, detail 9-B. At the discretion of the contractor there may be a relief cut required at the lowest point of the keyway. The relief cut shall not exceed 1/8 inch beyond constant depth shown in detail 10-D. This relief is required to allow metal chips to break away. This deviation is only required if other than a milling process is used. Inspection and acceptance shall be at the contractors facility for verification and conformance. Additional information: A -- The AS cast diameter of the taper is 1 1/2 inch smaller than the finished dimension. B -- The bottom surface of the casting will be rough machined when received. C -- The top and bottom surfaces may require a finish cut to achieve 5 foot 1/2 inch height and also be perpendicular to the centerline of the fabricated rudder blades. D -- Allow plus/minus .015 inch for all fractional dimension tolerances. E -- Transportation to and from contractor's plant will be provided by USCG Yard truck. References: A. USCG Plan NO. 378-FRAM-E-562-001 Rev. B, Rudder. B. Mil-Std-1689A(SH), 23 November 1990, Fabrication, Welding and Inspection of Ships Structure. These references are available upon request to this office. 2) Prior to final machining contractor shall weld to repair all leaks in castings/rudder bodies in accordance with Ref. B. After final machining and in the presence of the Coast Guard inspector the contractor shall perform an air test at 05 PSI with 0 drop in pressure for a duration of 10 minutes to completed rudder assemblied to prove that the rudder have 0 leaks including any leaks in socket castings. Note: All dimensional readings and tests are to be documented. Both rudders have been airtested at 2 PSI and found to be leaking through the hub casing. This notice constitutes a request for quotations under Simplified Acquisition Procedures. No other solicitation will be issued. Please submit all quotes via telefax or mail to Mr. Orofino. All responsive and responsible sources may submit a quote which will be considered by this agency. See Note 9. (0167)

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