The Department of Defense, through the Defense Logistics Agency (DLA Aviation), is seeking proposals for the procurement of Seal Assembly, Matne, specifically for the C-135 Aircraft, under the National Stock Number (NSN) 1650-00-187-1370. This solicitation is for an Indefinite Quantity Contract with an estimated annual requirement of 160 units over a contract term of 60 months, with delivery expected within 612 days after receipt of order. The items are critical for aircraft operations, and the procurement is classified as unrestricted, allowing all responsible sources to submit offers. Interested parties must complete the solicitation available on the DLA Internet Bid Board System (DIBBS) by the issue date of December 30, 2025, and can direct inquiries to Renee Griffin at renee.griffin@dla.mil or by phone at 445-737-2040.