Smithsonian Astrophysical Observatory, 60 Garden Street, Cambridge, Massachusetts 02138-1516

31 -- AZIMUTH BEARING SOL RFQBF7104 DUE 062300 POC Rena Cerbone, Contracting Officer, 617-495-7445, Fax: 617/495-7485, email: rcerbone@cfa.harvard.edu WEB: Harvard-Smithsonian Center for Astrophysics, cfa-www.harvard.edu/. E-MAIL: Sub-Contracts and Procurement, rcerbone@cfa.harvard.edu. The Smithsonian Astrophysical Observatory (SAO) intends to award on a Sole Source basis, a purchase order to Avon Bearings of Avon, Ohio for one spare Avon p/n: 1575A1, S/N: 7, precision, large-diameter turntable bearing, hereafter called Azimuth Bearing. This azimuth bearing will support the rotating components of an elevation over azimuth antenna configuration. The main rotating components are a six-meter, parabolic reflector, cabin and receiver having a combined weight of approximately 90,000 lbs. The antenna assembly is used at the summit of Mauna Kea, HI, at an altitude of 14,000 feet. This bearing must support the weight of the antenna rotating components while operating in wind speeds up to 45mph. The bearing must be capable of withstanding ambient temperatures between -5 and +25 degrees C and a relative humidity not greater than 25%. In addition, it must be capable of withstanding wind loads up to 135mph and non-operating temperatures between -10 and 50 degrees C with a relative humidity of 50%. The nominal diameter of the azimuth bearing is 80 inches and the bearing shall include an integral gear on the outer bearing race. A determination by SAO not to compete this proposed purchase order based upon responses to this notice is solely within the discretion of SAO. Information received will normally be considered solely for the purpose of determining whether to conduct a competitive procurement. This acquisition is being conducted under the guideline as set forth in the Simplified Acquisition Procedures (SAP). No written solicitation will be issued for this requirement. Delivery is 12-14 weeks ARO, FOB: Destination. Anticipated award date is 06/23/00 Posted 06/09/00 (W-SN463223). (0161)

Loren Data Corp. http://www.ld.com (SYN# 0210 20000613\31-0001.SOL)