This synopsis is issued to modify/amend the original synopsis issued 13 December 2000 for this requirement. There is also an option item/period for this effort. The option quantity of 1-5 each for NSN: 5985-01-374-4256SO; P/N: 19-440-10 will be exercised on or before 365 days after award of the basic requirement. The source of supply is Chelton, Inc., Lewisville, TX. See Note(s) 22.