Explanation of Columns

TM 55-2835-208-23P Definition Code MF MD AO AF AD XA - Item to be manufactured or fabricated at the direct support maintenance level. - Item to be manufactured or fabricated at the depot maintenance level. - Item to be assembled at organizational level. - Item to be assembled at direct support maintenance level. - Item to be assembled at depot Mainten- ance level. - Item is not procured or stocked be- cause the requirements for the item W ill result in the replacement of the next higher assembly. XB - Item is not procured or stocked. If not available through salvage requis- i t i o n . XC - Installation drawing, diagram, instruc- tion sheet, f i e ld service drawing, t h a t is identified by manufacturer’s part number. XD - A support item that is not stocked. When required item will be procured through normal supply channels. NOTE: Cannibalization or salvage may be used as a items coded above, except those coded XA and restricted by AR 700-42. source of supply aircraft support for any items as (2) Maintenance Code. Maintenance codes are assigned to indicate the levels of maintenance authorized to USE and REPAIR support items. The mainten- ance codes are entered in the third or fourth positions of the Uniform SMR Code format as follows: (a) The maintenance code entered in the third position will indi- cate the lowest maintenance level authorized to remove, replace, and use the sup- port item. The maintenance code entered in the third position will indicate one of the following levels of maintenance. Code Application/Explanation O - Support i t e m is removed, replaced, used at the organizational level. F - Support i t e m is removed, replaced, used at the direct support level. 3