The NAVSUP Weapon Systems Support in Mechanicsburg, PA intends to award a sole source contract for the refurbishment/repair of two secondary prop motors (NSN: 4Y-6105-01-076-0568). The government lacks the data or rights to purchase this part from other sources, making reverse engineering uneconomical. The requirement carries a "DX" rating under the Defense Priorities and Allocation System. Performance will occur at the contractor's location, with the highest security level required being confidential per DD FORM 254. No budget amount or submission timeline is specified in the description.