c. National Stock Number. Indicates the Na-
I d e n t i f i c a t i o n of the usable on codes used in this
t i o n a l stock number assigned to the item and will
b e used for requisitioning purposes.
d. Part Number. I n d i c a t e s t h e p r i m a r y n u m b e r
used by the manufacturer (individual, company,
f i r m , corporation, or Government activity), which
controls the design and characteristics of the item
5. How to Locate Repair Parts
by means of its engineering drawings, speci-
f i c a t i o n s , standards, and inspection requirements
a. When National stock number or part number
to identify an item or range of items.
(1) First. Using the table of contents, deter-
When a stock numbered item is re-
m i n e the functional group within which the item
q u i s i t i o n e d , the repair part received may
b e l o n g s . This is necessary since illustrations are
have a different part number than the
p r e p a r e d for functional groups and listings are di-
p a r t being replaced.
vided into the same groups.
e. Federal Supply Code for Manufacturer
(2) S e c o n d . Find the illustration covering the
( F S C M ) . The FSCM is a 5-digit numeric code listed
functional group to which the item belongs.
in SB 708-42 which is used to identify the manufac-
(3) Third. Identify the item on the illustration
t u r e r , distributor, or Government agency, etc.
and note the illustration figure and item number of
f. Description. Indicates the Federal item name
and, if required, a minimum description to identify
(4) F o u r t h . U s i n g t h e R e p a i r P a r t s L i s t i n g ,
find the figure and item number noted on the illus-
g. Unit of Measure (U/M). Indicates the standard
of the basic quantity of the listed item as used in
b. When National stock number or part number
p e r f o r m i n g the actual maintenance function. This
m e a s u r e is expressed by a two-character alphabet-
(1) F i r s t . U s i n g t h e I n d e x o f N a t i o n a l S t o c k
ical abbreviation (e.g., ea, in, pr, etc). When the unit
Numbers and Part Numbers, find the pertinent
of measure differs from the unit of issue, the lowest
N a t i o n a l stock number or part number. This index
unit of issue that will satisfy the required units of
is in NIIN sequence followed by a list of part num-
m e a s u r e will be requisitioned.
bers in alphameric sequence, cross-referenced to
h. Quantity Incorporated in Unit. I n d i c a t e s t h e
t h e illustration figure number and item number.
quantity of the item used in the breakout shown on
(2) S e c o n d . After finding the figure and item
the illustration figure, which is prepared for a
n u m b e r , locate the figure and item number in the
functional group, subfunctional group, or an as-
repair parts list.
U s a b l e on codes are shown in the description col-
u m n . Uncoded items are applicable to all models.
(Next printed page is 4).