NSN 5821 017007638, RADIO RECEIVER must be acquired from the actual manufacturer; The part must be acquired from a manufacturing source(s) specified on a source control or selected item drawing, as defined by the current version of DoD-STD-100. Suitable technical data, Government data rights or manufacturing knowledge are not available to permit acquisition from other sources, nor qualification testing of another part, nor use of a second source part in the intended application. Although by DOD-STD-100 definition, altered and selected items shall have an adequate technical data package, data review discloses that required data or data rights are not in Government possession and cannot be economically obtained. The subject item requires Government source approval prior to contract award as the item is flight critical and or the technical data available has not been determined adequate to support acquisition via full and open competition. Only the sources previously approved to the Government for this item have been solicited. The time required for approval of a new source is normally such that an award cannot be delayed pending approval of a new source. If you are not an approved source, you must submit together with your proposal, the information detailed in one of the NAVSUP Weapons Systems Support (NAVSUP WSS) Source Approval Information Brochures listed below. Spares: https://www.navsup.navy.mil/NAVSUP-Enterprise/NAVSUP-Weapon-Systems-Support/Business-Opps/ Technical data required to be submitted based on your companys experience in production of the same or similar item, or if this is an item you have never made. If your request for approval is currently being evaluated by NAVSUP WSS, submit with your offer, a copy of the cover letter which forwarded your request for source approval. Offers received which fail to provide all data required by the Source Approval Brochure or document previous submission of all data required by the Sour Approval Brochure will not be considered for award under this solicitation. Please note, if evaluation of a source approval request submitted hereunder cannot be processed in time and/or approval requirements preclude the ability to obtain subject items in time to meet Government requirements, award of the subject requirement may continue based on Fleet support needs. The NAVSUP WSS Commercial Item Identification Brochure is now available at https://www.navsup.navy.mil/NAVSUP-Enterprise/NAVSUP-Weapon-Systems-Support/Business-Opps/