6140-00-264-6042 (C22M56073)
NSN 6140-00-264-6042 (NIIN 00-264-6042) is a storage battery in Federal Supply Class 6140, Batteries, Rechargeable — a battery, composed of two or more cells forming a single unit. Manufacturer part number C22M56073 (Cardwell Condenser Corp, CAGE 94033); also referenced as MILB11814 (Military Specifications); BB405U (Joint Electronics Type Designation).
Key specs: 6 voltage in volts; full characteristics table below. NIIN assigned January 1963; DEMIL A (none required); export Schedule B 8507.80.0002.