This is a procurement for 16 units of a specific coupling half, to be delivered to the Defense Logistics Agency (DLA) Distribution within 161 days after receipt of order. The item is controlled by a source drawing, and the approved source is part number 51243-1 from manufacturer code 21392. Quotes must be submitted electronically, and the items supplied must strictly conform to the cited drawing. Digitized drawings and specifications are available electronically.