Item: rotor, disc brake. NSN: 2530-01-461-4732. Manufacturers Part Number: EX 4857 (cage 34623) or 13375503 S/O 13375500 (cage 27767). Quantity: 1,320 each. Option: 100%. FOB point: Origin. See Note 22. The offer due date is on or about 3 Feb 2002 (see solicitation for actual due date). To view more of TACOM's acquisitions and awards visit website http://contracting.tacom.army.mil/opportunity.htm.