Special regulation SR (series). 310-20-29. Military publications: Index of supply manuals, Ordnance Corps (Standard nomenclature lists, List of all items, Stock lists, List of all items, Crossreference lists, Stock list of all items, Pricing guides, Stock list of all items, Cross-reference lists, Interchangeability list, Crossreference list), Changes 2; Sept. 14, 1954.