This Request for Proposal (RFP) will result in a single Firm Fixed Price (FFP) award to procure the Impulse Cartridge MD65 and MD66 as follows; MD65 NSN: 1377-01-063-3162 and MD66 NSN: 1377-00-063-316... This Request for Proposal (RFP) will result in a single Firm Fixed Price (FFP) award to procure the Impulse Cartridge MD65 and MD66 as follows; MD65 NSN: 1377-01-063-3162 and MD66 NSN: 1377-00-063-3165. This RFP is unrestricted competition; all responsible sources may submit an offer that, if received in a timely manner, will be considered.