TM 10-4610-310-24P
0001 00
Source
Application/Explanation
Code
XA
Do not requisition an "XA" coded item.
Order the next higher assembly. (Refer
to the note after the explanations)
XB
If an item is not available from salvage,
order it using the CAGEC and P/N.
XC
Installation
drawings,
diagrams,
instruction
sheets,
field
service
drawings; identified by manufacturer's
P/N.
XD
Item is not stocked. Order an d-coded
item through normal supply channels
using the CAGEC and P/N 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 items source coded "XA" or those aircraft support
items restricted by requirements of AR 750-1.
Maintenance Code. Maintenance codes tell you the level(s) 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:
Third Position. The maintenance code entered in the third position tells you the lowest maintenance level authorized to
remove, replace, and use an item. The maintenance code entered in the third position will indicate authorization to the
following levels of maintenance:
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
items source coded "XA" or those aircraft support
items restricted by requirements of AR 750-1.
Maintenance
Application/Explanation
Code
C
Crew or operator maintenance
done
within
unit/AVUM maintenance.
O
Unit level/AVUM maintenance, can remove, replace,
and use the item.
F
Direct support/AVUM maintenance can remove,
replace, and use the item.
H
General support/AVUM maintenance can remove,
replace, and use the item.
0001 00-6
