Army Research Laboratory, Attn: AMSRL-CS-PR-AP, Abeerden Proving Grounds, MD 21005-5066

96 -- ALUMINUM MATRIX COMPOSITE CYLINDERS SOL DAAD17-99-Q-0819 DUE 071599 POC Barbara DeSchepper, Buyer, 410-278-5425, Jean Craig, Contracting Officer, 410-278-6517 The U.S. Army Research Laboratory, Aberdeen Proving Ground, MD intends to award on a sole-source basis with 3M CENTER, St. Paul, MN, 55144-1000 for the purchase of Aluminum Matrix Composite Cylinders, the aluminum matrix composite from which the shells will be fabricated must have a demonstrated strength to failure of 500 kpsi in the fiber direction and modulus of 36 mpsi as well. Transverse modulus shall be no less than 20 mpsi. The 3M nextel fiber content shall be no less than 60 PERCENT fiber volume fraction in a 2 PERCENT copper aluminum matrix alloy. Parts shall be melt-casted or pre-preg melted with void content less than 1/2 PERCENT, and ends ground to within 0.001 deg perpendicularity with no more than .002" of surface waviness. PARTS MUST BE RECEIVED AT US ARMY RESCHEARCH LABORATORY BY 30 SEPTEMBER, 1999. The Army Research Laboratory has found no other source that provides the Nextel 610 fibers that is used in manufacturing these cylinders. Inquires will only be accepted by FAX at (410)278-6522, Attn Barbara DeSchepper. "See Note 22" ***** CITE: (W-177 SN216393) CITE: (W-069 SN306842) Posted 07/06/99 (W-SN350574). (0187)

Loren Data Corp. http://www.ld.com (SYN# 0359 19990708\96-0002.SOL)