firm, corporation, or Government activity), which
controls the design and characteristics of the item
b. The following publication pertains to the
b y means of its engineering drawings, specifi-
C-6280(P)/APX, C-6280A(P)/APX and its compo-
c a t i o n s , standards, and inspection requirements
to identify an item or range of items.
TM 11-5841-268-25, Control, Transponder Set
C-6280(P)/APX, C-6280A(P)/APX, C-6717/APX and
When a stock numbered item is req-
u i s i t i o n e d , the repair part received may
have a different part number than the
5. How to Locate Repair Parts
p a r t being replaced.
a. When National stock number or part number
e. Federal Supply Code for Manufacturer
i s unknown.
(FSCM). The FSCM is a 5-digit numeric code listed
(1) First. Using the table of contents, deter-
in SB 708-42 which is used to identify the
mine the functional group within which the item
m a n u f a c t u r e r , distributor, or Government agency,
b e l o n g s . This is necessary since illustrations are
p r e p a r e d for functional groups and listings are
f. Description. Indicates the Federal item name
divided into the same groups.
and, if required, a minimum description to identify
(2) Second. Find the illustration covering the
functional group to which the item belongs.
g. Unit of Measure (U/M). Indicates the standard
(3) Third. Identify the item on the illustration
of the basic quantity of the listed item as used in
and note the illustration figure and item number of
p e r f o r m i n g the actual maintenance function. This
measure is expressed by a two-character alphabet-
(4) F o u r t h . Using the Repair Parts Listing,
ical abbreviation (e.g., ea, in, pr, etc). When the unit
find the figure and item number noted on the
of measure differs from the unit of issue, the lowest
unit of issue that will satisfy the required units of
h. When National stock number or part number
m e a s u r e will be requisitioned.
h. Quantity Incorporated in Unit. Indicates
(1) First. Using the Index of National Stock
quantity of the item used in the breakout shown on
Numbers and Part Numbers, find the pertinent
t h e illustration figure, which is prepared for a
National stock number or part number. This index
f u n c t i o n a l group, subfunctional group, "or an
i s in NIIN sequence followed by a list of part
numbers in alphameric sequence, cross-referenced
to the illustration figure number and item number.
a. Usable on codes are shown in the description
(2) Second. After finding the figure and item
column. Uncoded items are applicable to all
number, locate the figure and item number in the
models. Identification of the usable on codes used
repair parts list.
in this publication are:
(Next printed page is 4.1)