1MΩ (1 Megohm) Resistance Value, Type J Hot-Molded Carbon Matrix, 2.25 Watt Power Rating at +70°C, Single-Section Potentiometer, Linear Taper Profile, Plain Cylindrical Shaft Layout, -55°C to +120°C Extended Industrial Operational Window, Panel Bushing Mount Footprint | High-resistance structural variable resistor component manufactured by Allen-Bradley engineered to maintain an anti-sulfur layout architecture, optimized to provide stable bias current tracking strings, withstand high continuous system tuning cycle strains, and isolate vulnerable downstream circuitry from environmental voltage drift paths inside heavy industrial automation sub-panels | Industry Exact Equivalents: Allen-Bradley A311-157, A-B JA1N056S105UA, Rockwell Automation A311-157 | Industry Functional Cross-References: Ohmite WW1051, Clarostat RV4NAYSD105A, Precision Electronic Components RV4NAYSD105A | Military Specification National Stock Number (NSN): 5905-00-157-0311