ARMY TM 9-2815-257-24 AIR FORCE TO 38G1-128-2 MARINE CORPS TM 10155A/2815-24/3 APPENDIX E EXPENDABLE AND DURABLE ITEMS LIST Section I.  INTRODUCTION E-1.  Scope. This  appendix  lists  expendable  and  durable  items  that  you  will  need  to  operate  and  maintain  the  engine assembly.  This listing is for information only and is not authority to requisition the listed items.  These items are  authorized  to  you  by  CTA  50-790,  Expendable/Durable  Items  (except  medical,  class  V  repair  parts,  and heraldic items), or CTA 8-100, Army Medical Department Expendable/Durable Items. E-2.  Explanation of Columns. a. Column 1, Item Number.  This number is assigned to the entry in the listing and is referenced in the narrative instructions to identify the item (e.g., Cleaning Compound (Item 5, App. E)). b. Column 2, Level.  This column identifies the lowest level of maintenance that requires the item. c. Column 3, National Stock Number.  This is the national stock number assigned to the item which you can use to requisition it. d. Column 4, Item Name, Description, CAGEC, Part Number.  This provides the other information you need to identify the item. e. Column 5, UM.  This code shows the physical measurement or count of an item, such as gallon, dozen, pound, or gross. E-1