How to Locate Repair Parts - TM-11-5820-489-20P0006

TM 11-5820-489-20P

to those published in TM 11-5820-489-34P. Only

d. Part Number. Indicates the primary number

those parts assigned the third position SMR main-

used by the manufacturer (individual, company,

firm, corporation, or Government activity), which

tenance SMR code "C" or "O" are listed in the

tabular listing; therefore, there may be a break in

controls the design and characteristics of the item

the item number sequence. Only illustrations con-

by means of its engineering drawings, specifi-

taining organizational authorized items appear in

cations, standards, and inspection requirements

this manual.

to identify an item or range of items.

NOTE

5. How to Locate Repair Parts

When a stock-numbered item is re-

a. When National stock number or part number

quisitioned, the repair part received may

is unknown.

have a different part number than the

(1) First. Using the table of contents, deter-

part being replaced.

mine the functional group within which the item

e. Federal Supply Code for Manufacturer

belongs. This is necessary since illustrations are

(FSCM). The FSCM is a 5-digit numeric code listed

prepared for functional groups and listings are di-

in SB 708-42 which is used to identify the manufac-

vided into the same groups.

turer, distributor, or Government agency, etc.

(2) Second. Find the illustration covering the

f. Description. Indicates the Federal item name

functional group to which the item belongs.

and, if required, a minimum description to identify

(3) Third. Identify the item on the illustration

the item.

and note the illustration figure and item number of

g. Unit of Measure (U/M). Indicates the standard

the item.

of the basic quantity of the listed item as used in

(4) Fourth. Using the Repair Parts Listing,

performing the actual maintenance function. This

find the figure and item number noted on the illus-

measure is expressed by a two-character alphabet-

tration.

ical abbreviation (e.g., ea, in, pr, etc). When the unit

b. When National stock number or part number

of measure differs from the unit of issue, the lowest

is known.

unit of issue that will satisfy the required units of

(1) First. Using the Index of National Stock

measure will be requisitioned.

Numbers and Part Numbers, find the pertinent

h. Quantity Incorporated in Unit. Indicates the

National stock number or part number. This index

quantity of the item used in the breakout shown on

is in NIIN sequence followed by a list of part num-

the illustration figure, which is prepared for a

bers in alphameric sequence, cross-referenced to

functional group, subfunctional group, or an as-

the illustration figure number and item number.

sembly.

(2) Second. After finding the figure and item

4. Special Information

number, locate the figure and item number in the

repair parts list.

a. The following publication pertains to AN/

GRA-6 and its components:

6. Abbreviations

TM 11-5038, Control Group AN/GRA-6.

Not applicable.

b. The illustrations in this manual are identical

(Next printed page is 4.)