TM 11-5985-334-20P
INTRODUCTION
1. Scope
NOTE
Cannibalization or salvage maybe used as
This manual lists spares and repair parts; special
a source of supply for any items source
tools; special test, measurement, and diagnostic
coded above except those coded XA and
equipment (TMDE), and other special support equip-
aircraft support items as restricted by AR
ment required for performance of organizational
750-1.
maintenance of the AB-621/G. It authorizes the req-
uisitioning and issue of spares and repair parts as
(2) Maintenance code. Maintenance codes are
indicated by the source and maintenance codes.
assigned to indicate the levels of maintenance au-
thorized to USE and REPAIR support items. The
2. General
maintenance codes are entered in the third and
This Repair Parts and Special Tools List is divided
fourth positions of the Uniform SMR Code format as
into the following sections:
follows:
(a) The maintenance code entered in the third
and repair parts authorized for use in the perform-
position will indicate the lowest maintenance level
ance of maintenance. The list also includes parts
authorized to remove, replace, and use the support
which must be removed for replacement of the au-
item. The maintenance code entered in the third posi-
thorized parts. Parts lists are composed of functional
tion will indicate one of the following levels of mainte-
groups in numeric sequence, with the parts in each
nance:
group listed in figure and item number sequence.
Application/Explanation
Code
b. Section III. Special Tools List. Not applicable.
0 - Support item is removed, replaced, used at the
c. Section IV. National Stock Number and Part
organizational level.
Number Index. A list, in National item identification
(b) The maintenance code entered in the fourth
number (NIIN) sequence, of all National stock num-
position indicates whether the item is to be repaired
bers (NSN) appearing in the listings, followed by a
and identifies the lowest maintenance level with the
list, in alphameric sequence, of all part numbers ap-
capability to perform complete repair (i.e., all author-
pearing in the listings. National stock numbers and
ized maintenance functions). This position will con-
part numbers are cross-referenced to each illustra-
tain one of the following maintenance codes:
tion figure and item number appearance.
Application/Explanation
Code
F - The lowest maintenance level capable of com-
3. Explanation of Columns
plete repair of the support item is the direct
a. IllUStration. This column is divided as follows:
support level.
(1) Figure number. Indicates the figure number
Z - Nonreparable. No repair is authorized.
of the illustration on which the item is shown.
(3) Recoverability code. Recoverability codes
(2) Item number. The number used to identify
are assigned to support items to indicate the disposi-
item called out in the illustration.
tion action on unserviceable items. The recoverabil-
b. Source, Maintenance, and Recoverability (SMR)
ity code is entered in the fifth position of the Uniform
codes.
SMR Code format as follows:
(1) Source code. Source codes indicate the man-
ner of acquiring support items for maintenance, re-
Recoverability
Definition
codes
pair, or overhaul of end items. Source codes are en-
Z - Nonreparable item. When unserviceable, con-
tered in the first and second positions of the Uniform
demn and dispose at the level indicated in posi-
SMR Code format as follows:
tion 3.
code
Definition
F - Reparable item. When uneconomically repara-
PA - Item procured and stocked for anticipated or
ble, condemn and dispose at the direct support
known usage.
level.
XB - Item is not procured or stocked. If not availa-
c. National Stock Number. Indicates the National
ble through salvage, requisition.
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