This is a solicitation for the purchase of current versions of specific HC-27J OEM technical publications from Leonardo Spa, with delivery required six months after receipt of a purchase order. The requirement is restricted, and it is anticipated that a firm-fixed price purchase order will be awarded on a sole source basis to Leonardo Spa. All items must have clear, documented traceability to the Original Equipment Manufacturer, Leonardo Spa, and the contractor must furnish a Certificate of Conformance. Only quotations with shipping terms of F.O.B. Destination or F.O.B. Origin will be accepted.