Source, Maintenance, and Recoverability (SMR) Codes.
(1) Source code.
Source codes indicate the manner of acquiring
support items for maintenance, repair, or overhaul of end items.
Source codes are entered in the first and second positions of the
Uniform SMR Code format as follows:
P A . . .
P B . . .
X B . . .
X D . . .
Item procured and stocked for anticipated or known usage.
Item procured and stocked for insurance purposes because
essentiality dictates that a minimum quantity be available
in the supply system.
Item is not procured or stocked.
If not available through
A support item that is not stocked.
When required, item
will be procured through normal supply channels.
Cannibalization or salvage may be used as a source
of supply for any items coded above except those
coded XA and aircraft support items as restricted
by AR 700-42.
Maintenance codes are assigned to in-
dicate the levels of maintenance authorized to USE and REPAIR support
The maintenance codes are entered in the third and fourth
positions of the Uniform SMR Code format as follows:
(a) The maintenance code entered in the third position will
indicate the lowest maintenance level authorized to remove, re-
place, and use the support item.
The maintenance code entered in
the third position will indicate one of the following levels of
c . . . . Crew or operator maintenance performed within organizational
o . . . . Support item is removed, replaced, used at the organiza-
F . . . . Support item is removed, replaced, used at the direct
H . . . . Support item is removed, replaced, used at the general