This manual lists spares and repair parts; special
PA -- Item procured and stocked for anticipated or
tools, special test, measurement, and diagnostic
equipment (TMDE), and other special support equip-
XD -- A support item that is not stocked. When re-
ment required for performance of general support
quired, item will be procured through
maintenance of the MK722/URC. It authorizes the
normal supply channels.
requisitioning and issue of spares and rapair parts as
indicated by the source and maintenance codes.
Cannibalization or salvage may be used as
a source of supply for any items source
coded above except those coded XA and air-
This Repair Parts and Special Tools list is divided into
craft support items as restricted by AR
the following sections:
a. Section II. Repair Parts Lists. A list of spares and
repair parts authorized for use in the performance of
(2) Maintaince code. Maintenance codes are
maintenance. The list also includes parts \vhich must
assigned to indicate the levels of maintenance
be removed for replacement of the authorized parts.
authorized to USE and REPAIR support items. The
Parts list are composed of functional groups in
maintenance codes are entered in the third and fourth
numeric sequence, with the parts in each group listed
positions of the Uniform SMR Code format as
in figure and item number sequence.
b. Section III. Special Tools List. Not applicable.
c. Section IV National Stock Number andPart
(a) The maintenance code entered in the third
Number Index. A list, in National item identification
position will indicate the lowest maintenance level
number (NIIN) sequence, of all National stock
authorized to remove, replace, and use the support
numbers (NSN) appearing in the listings, followed by
item. The maintenance code entered in the third posi-
a list, in alphameric sequence, of all part numbers
tion will indicate one of the following levels of
appearing in the listings. National stock numbers and
part numbers are cross-referenced to each illustra-
tion figure and item number appearance.
O --Support item is removed, replaced, used at the
3. Explanation of Columns
H -- Support item is removed, replaced, used at the
a. Illustration. This column is divided as follows:
general support level.
(1) Figure number. Indicates the figure number
of the illustration on which the item is show-n.
(b) The maintenance code entered in the
(2) ltem number. The number used to identify
fourth position indicates whether the item is to be
item called out in the illustration.
repaired and identifies the lowest maintenance level
b. Source, Maintence,and Recoverabilty (SMR)
with the capability to perform complete repair (i.e.,
all authorized maintenance functions). This position
(1) Source code. Source codes indicate the
will contain one of the following maintenance codes:
manner of acquiring support items for maintenance,
repair, or overhaul of end items. Source codes are
entered in the first and second positions of the
H -- The lowest maintenance level capable of com-
Uniform SMR Code format as follows: