NSN 1R-0000-LLF02O168-GF, REF NR 74A192797-1003, QTY 28 EA, DELIVERY FOB ORIGIN. The Government physically does not have in its possession sufficient, accurate, or legible data to purchase this part/contract repair from other than the current source(s). 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 source(s) previously approved by 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 Weapon Systems Support (NAVSUP WSS) Source Approval Information Brochures listed below. Spares: https://www.navsup.navy.mil/NAVSUP-Enterprise/NAVSUP-Weapon-Systems-Sup port/Business-Opps/ Repair: https://www.navsup.navy.mil/NAVSUP-Enterprise/NAVSUP -Weapon-Systems-Support/Business-Opps/ technical data required to be submitted based on your company's experience in production of the same or similar item, or if this is an item you have never made. If your request for source approval is currently being evaluated at 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 Source 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/Bus iness-Opps/" Interested parties may obtain copies of Military and Federal Specificationsand Standards, Qualified Products Lists (QPLs), Qualified Product Databases(QPDs), Military Handbooks, and other standardized documents from the DoDSingle Stock Point (DODSSP) at Document Automation and Production Service(DAPS) in Philadelphia, PA. NOTE: Patterns, Drawings, Deviation Lists, Purchase Descriptions, etc. are NOT stocked at DODSSP. Most documents are available in Adobe PDF format from ASSIST-Online at: http://quicksearch.dla.mil/. Users may use ASSIST-Quick Search to search for and download available documents directly using standard browser software. Documents that are not available for downloading from ASSIST-Quick Search can be ordered from the DODSSP website using the ASSIST Shopping Wizard after obtaining a DODSSP Customer Account by follo…