Maintenance code - TM-11-5830-263-20-P0142

TM 11-5830-263-20&P

Code

Application/Explanation

XA -

Do not requisition an "XA" coded item. Order its next higher assembly. (Also

refer to Note below.)

XB -

If an "XB" item is not available from salvage, order it using the CAGEC and

part number given.

XC -

Installation drawing, diagram, instruction sheet, field service drawing, that is

identified by manufacturer's part number.

XD -

Item is not stocked.. Order an "XD" coded item through normal supply

channels using the CAGEC and part number given, if no NSN is available.

NOTE

Cannibalization or controlled exchange, when authorized, may be used as a source of

supply for items with the above source codes, except for those source coded "XA" or those

aircraft support items restricted by requirements of AR 750-1

2. Maintenance code. Maintenance codes tell you the category of maintenance authorized to

USE and REPAIR support items. The maintenance codes are entered in the third and fourth

positions of the SMR code as follows:

(a) The maintenance code entered in the third position tells you the lowest maintenance

category authorized to remove, replace, and use an item. The maintenance code entered

in the third position will indicate authorization to one of the following categories of

maintenance.

Code

Application/Explanation

C-

Crew or operator maintenance done within unit or aviation maintenance.

O-

Unit or aviation unit category can remove, replace, and use the item.

F-

Direct support or aviation intermediate category can remove, replace, and use

the item.

H-

General support category can remove, replace, and use the item.

L-

Specialized repair activity can remove, replace, and use the item.

D-

Depot category can remove, replace, and use the item

(b) The maintenance code entered in the fourth position tells whether or not the item is to

repaired and identifies the lowest maintenance category with the capability to do complete

repair (i.e., perform all authorized repair functions). This position will contain one of the

following maintenance codes.

NOTE

Some limited repair may be done on the item at a lower category of maintenance, if

authorized by the Maintenance Allocation Chart (MAC) and SMR codes.

C-4