TM 11-6625-622-34P
INTRODUCTION
1. Scope
Definition
Code
XD - A support item that is not stocked. When
This manual lists repair parts and special tools
required, item will be procured through
required for performance of direct support and
normal supply channels.
general maintenance of the AN/URM-l57
Note
and AN/URM-157A.
Cannibalization or salvage may be used as
2. General
a source of supply for any items source
This Repair Parts and Special Tools List is divided
coded above except those coded XA, XD,
into the following sections:
and aircraft support items as restricted by
AR 700-42.
parts authorized for use in the performance of
(2) Maintenance code. Maintenance codes are
maintenance. The list also included parts which
assigned to indicate the levels of maintenance
must be removed for replacement of the authorized
authorized to USE and REPAIR support items.
parts. Parts lists are composed of functional
The maintenance codes are entered in the third and
groups in ascending numerical sequence, with the
fourth positions of the Uniform SMR Code format
parts in each group listed in figure and item
as follows:
number sequence.
(a) The maintenance code entered in the
b. Section III. Special Tools List. N o t a p -
third position will indicate the lowest maintenance
plicable.
level authorized to remove, replace, and use the
c. Section IV. National Stock Number and Part
support item. The maintenance code entered in the
Number Index. A list, in ascending National item
third position will indicate one of the following
identification n u m b e r ( N I I N , l a s t 9 d i g i t s )
levels of maintenance:
sequence, of all National stock numbers appearing
O - Support item is removed, replaced, used at the
in the listings, followed by a list, in alphameric
organizational level.
sequence, of aIl part numbers appearing in the
H - Support item is removed, replaced, used at the
listings. National stock number and part numbers
general support level.
are cross-referenced to each illustration figure and
(b) The maintenance code entered in the
item number appearance.
fourth position indicates whether the item is to be
repaired and identifies the lowest maintenance level
3. Explanation of Columns
with the capability to perform complete repair (i. e.,
The following provides an explanation of columns
a l l authorized m a i n t e n a n c e functions). This
found in the tabular listings:
position will contain one of the following main-
a. Illustration. This column is divided as
tenance codes:
follows:
(1) Figure number. Indicates the figure
Application/Explanation
Code
number of the illustration in which the item is
H - The lowest maintenance level capable of
shown.
complete repair of the support item is the gen-
(2) Item number. The number used to identify
eral support level.
each item called out in the illustration.
Z - Nonreparable. No repair is authorized.
b. Source, Maintenance, and Recoverability
(3) Recoverability code. Recoverability codes
Codes (SMR).
are assigned to support items to indicate the
(1) Source code. Source code are assigned to
disposition action on unserviceable items. The
support items to indicate the manner of acquiring
recoverability code is entered in the fifth position
support items for maintenance, repair, or overhaul
of the Uniform SMR Code format as follows:
of end items. Source codes are entered in the first
and second positions of the Uniform SMR Code
Recoverability
Definition
Codes
format as follows:
Z - Nonreparable item.
W h e n unserviceable,
Code
Definition
condemn and dispose at the level indicated
PA - Item procured and stocked for anticipated or
in position 3.
known usage.
