The Department of Defense, through the Defense Logistics Agency (DLA Aviation), is seeking quotes for the procurement of NSN 5310-01-185-6231, specifically for a plain castellated nut. The requirement includes a quantity of 705 units to be delivered to DLA Distribution within 161 days after the order is placed. This item is critical for various military applications and must conform to the specifications outlined in the source-controlled drawing, with approved sources listed in the solicitation. Interested vendors are encouraged to submit their quotes electronically, and any inquiries should be directed to the buyer via email at DibbsBSM@dla.mil, as hard copies of the solicitation are not available.