National M15883 Industrial Motor Carbon Brushes (Pack of 4) - New Surplus Sealed

National M15883 Industrial Motor Carbon Brushes (Pack of 4) - New Surplus Up for sale is a genuine National heavy-duty industrial electric motor carbon brush set, factory catalog part number M15883 (internal codes TK5570 , 4500796031 , and BG9261 ). Precision manufactured to strict industrial standards, these premium-grade carbon brushes are engineered to provide exceptional electrical conductivity and consistent power transmission within large industrial DC motors, heavy generators, slip ring assemblies, and rotating electrical machinery. Each carbon block in this matching 4-pack features dense, high-grade carbon-graphite construction optimized for low wear and spark minimization under heavy electrical loads. The blocks are pre-fitted with flexible, multi-strand braided copper shunt wires (pigtails) designed to dissipate continuous thermal strain safely. Each shunt wire is securely terminated with rugged, stamped metallic fork/spade terminal connectors to ensure a reliable mechanical fit into standard industrial brush holder cages. Product Details Manufacturer: National Carbon / National Part Number / MPN: M15883 (Also references M15883 A7 / M15883A7) Warehouse / Factory Codes: 4500796031 / TK5570 / BG9261 Batch / Date Stamp: 10/08/2007 (Batch Code: 2601) Quantity: Complete matching package of 4 carbon brushes Component Category: Industrial Motor Carbon Brush / Contact Block Set Block Dimensions: Fits standard 1" x 1-1/2" x 1-3/4" brush holder profiles Material Composition: High-purity, premium-grade carbon-graphite composite matrix Termination Details: Dual flexible braided copper shunt leads with integrated metallic fork/spade connector lugs Core Application: Large industrial DC electric motors, overhead crane motors, heavy production line drives, generators, and plant facility equipment Item Condition New other. This industrial carbon brush 4-pack is brand-new, completely unused warehouse maintenance surplus stock. The assembly remains sealed inside its heavy-gauge factory clear plastic storage bag, complete with the original white adhesive distributor data label showing matching part numbers, barcodes, and manufacturing date stamps. Because carbon-graphite handles storage exceptionally well, the blocks are physically flawless with crisp edges, unmarred contact faces, and a clean, solid structure. The copper braided wire shunts remain highly flexible and entirely free of oxidation, and the metal terminal ears are perfectly clean and bright. CONDITION: NSFS - New Surplus Factory Sealed (OEM) WARRANTY: 120 DAYS SAME DAY SHIPPING AVAILABLE ON ORDERS MADE BEFORE 4PM EST. (CAN SHIP COLLECT ON UPS OR FEDEX ACCOUNT) SELL YOUR SURPLUS PremiumPLC BUYS ALL TYPES OF NEW AND USED INDUSTRIAL AUTOMATION & MRO SURPLUS ________________________________________________________________________________ 2159