NASA Goddard Space Flight Center, Code 219, Greenbelt, MD 20771

A -- MINIATURIZED LATCHING SOLENOID VALVES POC Mary J. Petkoff, Contracting Officer, 301-286-6143. NASA Goddard Space Flight Center intends to issue a sole source modification to contract NAS5-31332 with Aker Industries to increase the quantity of miniaturized solenoid latching valves by 30 standard valves and 10 rupture disk valves. The current contract is for the Cassini mission. The additional valves are needed for the upcoming Rosetta mission, and are expected to be delivered four months after execution of this modification. The RFP that resulted in the award of NAS5-31332 was issued competitively; however, Aker was the only company to respond. Aker developed valves which included the following characteristics: construction mainly of titananium to allow for a weight of 27 grams, dimensions of .5'' diameter x 1.25'' long, latching solenoid type, actuator assembly sealed off from the gas flow by means of a bellow assembly to minimize contamination into the gas stream from outside sources, and the capability for the valves to attach to the instruments manifold by way of leak tight 'C' seals. The leak rate across the valve seat shall be less than 6E-10 atm.cc/sec for helium at room temperature. The leak rate from outside the valve housing into the gas sampling region (case leakage) shall be less than 4E-10 atm.cc/sec from helium at room temperature. In addition, the valves should successfully operate within specifications during a minimum of twelve 300 degree C, 24 hour bakeout cycles. The statuatory authority for Other Than Full and Open Competition is 10 U.S.C. 2304(C)(1)--Only One Responsible Source. Any other persons desiring consideration for this requirement must fully identify their interest and capability to perform this effort in writing within fifteen (15) days of the date of publication of this synopsis to NASA Goddard Space Flight Center, Code 219, Attn: Ms. Mary Petkoff, Greenbelt, MD 20771. See Note 12 and Note 22. (0228)

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