TM10-3930-660-34 APPENDIX B EXPENDABLE/DURABLE SUPPLIES AND MATERIALS LIST Section I.    INTRODUCTION B-1. General.This appendix lists expendable supplies and materials you will need to operate and maintain the 6KVRRTFL.This listing is for informational purposes only and is not authorized to requisition the needed items.  These items are authorized to you by CTA 50-970, Expendable/Durable Items (Except Medical,  Class V,  Repair Parts,  and Heraldic Items) or CTA 8-100,  Army Medical Department Expendable/Durable items. B-2. Explanation Of Columns.  The following provides an explanation of the columns found in the tabular listing: a. Item Number,  Column 1.This column indicates the number assigned to the entry in the listing. b. Level,  Column 2.This column identifies the lowest level of maintenance that requires the listed item.  The symbol designations for the various maintenance categories are as follows: SYMBOL MAINTENANCE  CATEGORY C ........................................................... Operator or Crew 0 ........................................................... Organizational Maintenance F ........................................................... Direct Support Maintenance H ........................................................... General Support Maintenance D ........................................................... Depot Maintenance c.  National Stock Number (NSN),  Column 3.  This column indicates the NSN assigned to the item,  and will be used for requisitioning purposes. d.  Description, Column 4.This column indicates the Federal item name and,  if required,  a description to identify the item.  The last line for each item indicates the Federal Supply Code for Manufacturers (FSCM) in parenthesis followed by the part number. e.  Unit of Measure (U/M),  Column 5.This column indicates the measure used in performing the actual maintenance function.  This measure is expressed by a two-character alphabetical abbreviation (e.g.,  EA,  IN,  PR). If the unit of measure differs from the unit of issue,  requisition the lowest unit of issue that will satisfy your requirements. B-1