44166000 - Oil country tubular goods

CPV code 44166000 in the EU Common Procurement Vocabulary refers to Oil country tubular goods. It sits at level 4 of the CPV hierarchy as a category within the 44 division. This code is nested directly under 44160000, narrowing the broader category into the specific area of oil country tubular goods. As a leaf code, 44166000 has no further subdivisions and represents the most precise classification available in this branch — buyers should reference it directly in tender notices when the procurement primarily concerns oil country tubular goods. Contracting authorities across the EU use 44166000 in TED notices and national procurement portals to signal that a tender relates to oil country tubular goods.