NASA/Goddard Space Flight Center, Code 287 Greenbelt, MD

A -- CRYOGENIC VALVES SOL RFP5-14839/238 POC Darlene Walter, 301-286-4239. CRYOGENIC VALVES FOR X-RAY SPECTROMETER (XRS). NASA/GSFC intends to issue a Request for Proposal (RFP)5-14839/238 on a sole source basis to Mission Research Corp., Logan, UT. The contract will procure eight one-half inch valves and six sets of drive electronics for use on the XRS system of the ASTRO-E satellite. The valves operate over the temperature range from room temperature down to about 4.2 degree K. The drive electronics will operate at room (temperature) conditions only. The valve is the Model Number CV-94.5 whose design has been flight qualified to the performance requirements by Mission Research Corp. A test is required on a non-flight valve to verify the mechanical integrity. The valves are to be electrically operated and produce position status information. The valves must be fully functional for all ground testing but are not operated after launch. The requirement after launch is that they stay closed and do not exceed specification leak rates. Pursuant to 10 U.S.C. 2304(c)(1), Mission Research Corp. is the only responsible source capable of meeting the Government's minimum requirements, and no other known source is capable to provide the cryogenic (liquid helium) valve to meet the temperature ranges required. Any persons desiring consideration are requested to fully identify their interest and capabilities within fifteen (15) days of the publication of this synopsis to the GSFC Contracting Officer listed above. See Note 22. (0046)

Loren Data Corp. http://www.ld.com (SYN# 0002 19950216\A-0002.SOL)