4 0 Special
(3) Recoverability code. Recoverability codes
are assigned to support items to indicate the dis-
a. The following publication pertains to the
position action on unserviceable items. The recov-
AN/USM98A and its components:
erability code is entered in the fifth position of the
Uniform SMR Code format as follows:
USM98A, and AN/USM-98B.
b. The illustrations in this manual are identical
Z--Nonreparable item. When unserviceable, con-
t o those published in TM 116625599-40P-1.
demn and dispose at the level indicated in
Only those parts assigned the third position SMR
m a i n t e n a n c e code "C" or "O" are listed in the
t a b u l a r listing; therefore, there may be a break
c. National Stock Number. Indicates the Na-
i n the item number sequence. Only illustrations
tional stock number assigned to the item and will
containing organizational authorized items appear
be used for requisitioning purposes.
in this manual.
d. Part Number. Indicates the primary number
u s e d by the manufacturer (individual, company,
5. How to Locate Repair Parts
firm, corporation, or Government activity), which
a. When National stock number or part number
controls the design and characteristics of the item
by means of its engineering drawings, specifica-
t i o n s , standards, and inspection requirements to
(1) First. Using the table of contents, deter-
identify an item or range of items.
mine the functional group within which the item
belongs. This is necessary since illustrations are
p r e p a r e d for functional groups and listings are
divided into the same groups.
When a stock numbered item is requisi-
tioned, the repair part received may have
(2) S e c o n d . Find the illustration covering
a different part number than the part
the functional group to which the item belongs.
(3) Third. Identify the item on the illustra-
tion and note the illustration figure and item num-
e. Federal Supply Code for Manufacturer
ber of the item.
( F S C M ) . The FSCM is a 5-digit numeric code
l i s t e d in SB 708-42 which is used to identify
(4) Fourth. Using the Repair Parts Listing,
the manufacturer, distributor, or Government
f i n d the figure and item number noted on the
f. Description. Indicates the Federal item name
and, if required, a minimum description to iden-
b. When National stock number or part number
tify the item.
g. Unit of Measure (U/M). Indicates the
(1) First. Using the Index of National Stock
standard of the basic quantity of the listed item as
N u m b e r s and Part Numbers, find the pertinent
used in performing the actual maintenance func-
National stock number or part number. This index
tion. This measure is expressed by a two-character
is in NIIN sequence followed by a list of part num-
a l p h a b e t i c a l abbreviation (e.g., ea, in, pr, etc).
bers in alphameric sequence, cross-referenced to
When the unit of measure differs from the unit of
the illustration figure number and item number.
issue, the lowest unit of issue that will satisfy the
required units of measure will be requisitioned.
(2) Second. After finding the figure and item
number, locate the figure and item number in the
h. Quantity Incorporated in Unit. I n d i c a t e s
repair parts list.
t h e quantity of the item used in the breakout
shown on the illustration figure, which is prepared
6. A b b r e v i a t i o n s
for a functional group, subfunctional group, or an