We are in need of 4 pcs of ONTIC ENGINEERING SPACER, SLEEVE P/N: 588941-176(NSN # 5365-01-115-2893) in New Condition Please offer quote with best possible ship date and also confirm availability of Manufacturer's Certificate of Conformance. BARE ITEM MARKINGS SHALL BE PER MIL-STD-130N OR LATER, PARA 4