This is a procurement for Concord Blocks, a source-controlled drawing item, with a total quantity of nine units across four delivery lines. The items must be delivered within 5 days of receipt of order to four separate naval vessels: USS ESSEX (LHD 2), USNS ALAN SHEPARD (T-AKE 3), USNS JOHN LEWIS (T-AO 205), and USNS JOHN ERICSSON (T-AO 194). The approved source for the item is 0V369 571-220223, and all furnished items must meet the requirements of the cited drawing. Quotes must be submitted electronically, and digitized drawings and specifications may be retrieved or ordered electronically.