I t e m s with these codes are not to be requested
requisitioned individually. The parts that make up the
AF- (Assembled by
a s s e m b l e d item must be requisitioned or fabricated and
a s s e m b l e d at the level of maintenance indicated by the
AH- (Assembled by
s o u r c e code. If the 3d position of the SMR code authorizes
y o u to replace the item, but the source code indicates the
AL- Assembled by
item is assembled at a higher level, order the item from
the higher level of maintenance.
AD- Assembled by
XA-DO not requisition an "XA"-coded item. Order its next higher assembly. (Also,
r e f e r to the NOTE below.)
X B - If an `XBH i t e m i s n o t a v a i l a b l e f r o m s a l v a g e , o r d e r i t u s i n g t h e F S C M a n d p a r t
n u m b e r given.
XC- Installation drawing, diagram, instruction sheet, field service drawing, that is
identified by manufacturer's part number.
X D - Item is not stocked. Order an `XD"-coded item through normal supply channels
u s i n g the FSCM and part number given, if no NSN is available.
NOTE: C a n n i b a l i z a t i o n o r c o n t r o l l e d e x c h a n g e , w h e n a u t h o r i z e d , m a y b e u s e d a s 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 700-42.
( 2 ) Maintenance Code.
M a i n t e n a n c e codes tell you the level(s) of maintenance
a u t h o r i z e d to USE and REPAIR support items. T h e maintenance codes are entered in the
third and fourth positions of the SMR Code as follows:
m a i n t e n a n c e level authorized to remove, replace, and use an item. The maintenance
code entered in the third position will indicate authorization to one of the follow-
ing levels of maintenance:
- C r e w or operator maintenance done within organizational or
aviation unit maintenance.
-Organizational or aviation unit level can remove, replace, and use
-Direct support or aviation intermediate level can remove, replace,
a n d use the item.
-General support level can remove, replace, and use the item.
- S p e c i a l i z e d r e p a i r a c t i v i t y c a n r e m o v e replace, and use the item.
-Depot level can remove, replace, and use the item.