0023
TM 1-4920-924-13&P
AVIATION SHOP EQUIPMENT CONTACT MAINTENANCE (AV SECM) SYSTEM REPAIR PARTS AND
SPECIAL TOOLS LIST (RPSTL) INTRODUCTION - (CONTINUED)
Source Code
Application/Explanation
PA
NOTE
PB
PC
PD
Items coded PC are subject to deterioration.
PE
PF
Stock items; use the applicable NSN to
PG
requisition/request items with these source codes.
PH
They are authorized to the level indicated by the
PR
code entered in the 3rd position of the SMR code.
PZ
KD
Items with these codes are not to be requested/requisitioned
KF
individually. They are part of a kit which is authorized to the
KB
maintenance level indicated in the third position of the SMR code.
The complete kit must be requisitioned and applied.
MO-Made at Service/AMC level
Items with these codes are not to be requisitioned/requested
MF-Made at Field/ASB level
individually. They must be made from bulk material which is identiied
MH-Made at Below Depot
by the P/N in the DESCRIPTION AND USABLE ON CODE (UOC)
Sustainment level
column and listed in the bulk material group work package of the
ML-Made at SRA/TASMG
RPSTL. If the item is authorized to you by the third position code of
MD-Made at depot
the SMR code, but the source code indicates it is made at higher
MG-Navy only
level, order the item from the higher level of maintenance.
AO-Assembled by Service/AMC
Items with these codes are not to be requested/requisitioned
level
individually. The parts that make up the assembled item must be
AF-Assembled by Field/ASB level
requisitioned or fabricated and assembled at the level of maintenance
indicated by the source code. If the third position of the SMR code
AL-Assembled by SRA/TASMG
authorizes you to replace the item, but the source code indicates the
AD-Assembled by depot
item is assembled at a higher level, order the item from the higher
AG-Navy Only
level of maintenance.
XA
Do not requisition an "XA" coded item. Order the next higher
assembly. (Refer to NOTE below.)
XB
If an item is not available from salvage, order it using the CAGEC
and P/N.
XC
Installation drawings, diagrams, instruction sheets, ield service
drawings; identiied by manufacturer's P/N.
XD
Item is not stocked. Order an XD-coded item through local purchase
or 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 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:
Maintenance Application/Explanation
Code
O*
Unit level/AVUM maintenance can remove, replace, and use the item.
F
Direct support/AVIM maintenance can remove, replace, and use the item.
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