b. The following publication pertains to the RL-31,
standards, and inspection requirements to identify
RL-31B, RL-31C, RL-31D, and RL-31E and its com-
an item or range of items.
TM 11-362, Reel Units RL-31, RL-31B, RL-31C,
When a stock-numbered item is requisi-
RL-31D, and RL-31E
tioned, the repair part received may have
a different part number than the part being
5. How to Locate Repair Parts
a. When National stock number or part number
e. Federal Supply Code for Manufacturer
(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 manu-
mine the functional group within which the item
facturer, distributor, or Government agency, etc.
belongs. This is necessary since illustrations are
f. Description. Indicates the Federal item name
prepared for functional groups and listings are
and, if required, a minimum description to identify
divided into the same groups.
g. Unit of Measure (U/M). Indicates the standard
(2) Second. Find the illustration covering the
of the basic quantity of the listed item as used
functional group to which the item belongs.
in performing the actual maintenance function. This
(3) Third. Identify the item on the illustration
measure is expressed by a two-character alphabeti-
and note the illustration figure and item number of
cal abbreviation (e.g., ea, in, pr, etc). When the
unit of measure differs from the unit of issue, the
lowest unit of issue that will satisfy the required
(4) Fourth. Using the Repair Parts Listing, find
units of measure will be requisitioned.
the figure and item number noted on the illustra-
h. Quantity Incorporated in Unit. Indicates the
quantity of the item used in the breakout shown
on the illustration figure, which is prepared for a
b. When National stock number or part number
functional group, subfunctional group, or an assem-
(1) First. Using the Index of National Stock
Numbers and Part Numbers, find the pertinent Na-
4. Special Information
tional stock number or part number. This index
a. Usable on codes are shown in the description
is in NIIN sequence followed by a list of part num-
column. Uncoded items are applicable to all models.
hers in alphameric sequence, cross-referenced to
Identification of the usable on codes used in this
the illustration figure number and item number.
(2) Second. After finding the figure and item
used o n
number, locate the figure and item number in the
repair parts list.
(Next printed page is 4)