The Department of Defense, through the Defense Logistics Agency (DLA) Aviation Oklahoma City, is issuing a special notice for the procurement of support seals for aircraft, specifically identified by National Stock Number (NSN) 2840-00-343-7805NZ. The requirement includes the provision of a seal as per the top drawing 4028004, with the latest revision dated March 3, 2020, indicating the importance of adhering to established specifications for aircraft maintenance and operation. This procurement is critical for ensuring the reliability and performance of aircraft engines, which are vital to national defense operations. Interested vendors should refer to the solicitation information for further details and contact the designated personnel once the solicitation is approved for quotes.