ITEM: 4 x 11/2 x 1/2 Black Acetal Rectangular Bar MSC. MANUFACTURER: MSC. BRAND: MSC. MANUFACTURER PART: 5509534. 4 x 11/2 x 1/2 Black Acetal Rectangular Bar Porosity Free, Black (MOQ1, Pkg Qty1)CATEGORIES: Maintenance, Repair and Operational (MRO) Supplies. Plastics. Plastic Bars. N/A. TOTAL RECYCLED CONTENT: 10.00%. POSTCONSUMER RECYCLED CONTENT: 1.00%. KEYWORDS: MSCPlasticsPlastic BarsN/AN/A.