HOW to Locate Repair Parts - TM-11-6625-564-20P0006

TM 11-6625-564-20P

Recoverability

b. The following publication pertains to the

Definition

codes

MK-731/ARC-51X, MK-731A/ARC-51X and its

HReparable item. When uneconomically

components:

reparable, condemn and dispose at the general

TM 11-6625-564-12, Maintenance Kits, Electronic

support level.

Equipment MK-731/ARC-51X and MK-731A/AR-

c. National Stock Number. Indicates the National

C-51X

stock number assigned to the item and will be used

c. The illustrations in this manual are identical to

for requisitioning purposes.

those published in TM 11-6625-564-40P. Only

d Part Number. Indicates the primary number

those parts assigned the third position SMR main-

used by the manufacturer (individual, Company,

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

firm, corporation, or Government activity), which

listing therefore, there may be a break in the item

controls the design and characteristics of the item

number sequence. Only illustrations containing

by means of its engineering drawings,

organizational authorized items appear in this

specifications, standards, and inspection

manual.

requirements to identify an item or range of items.

5. HOW to Locate Repair Parts

NOTE

a. When National stock number or part number is

When a stock numbered item is

unknown.

requisitioned, the repair part received

(1) First. Using the table of contents, determine

may have a different part number than

the part being replaced.

the functional group within which the item belongs.

This is necessary since illustrations are prepared for

e. Federal Supply Code for Manufacturer (FSCM).

functional groups and listings are divided into the

The FSCM is a 5-digit numeric code listed in SB

same groups.

708-42 which is used to identify the manufacturer,

(2) Second. Find the illustration covering the

distributor, or Government agency, etc.

functional group to which the item belongs.

f. Description. Indicates the Federal item name

(3) Third. Identify the item on the illustration

and, if required, a minimum description to identify

and note the illustration figure and item number of

the item.

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

(4) Fourth. Using the Repair Parts Listing, find

of the basic quantity of the listed item as used in

t h e figure and item number noted on the

performing the actual maintenance function. This

illustration.

measure is expressed by a two-character

b. When National stock number or part number is

alphabetical abbreviation (e.g., ea. in, pr, etc). When

known.

the unit of measure differs from the unit of issue, the

(1) First. Using the Index of National Stock

Iowest unit of issue that will satisfy the required

Numbers and Part Numbers, find the pertinent

units of measure will be requisitioned.

National stock number or part number. This index

h. Quuntity Incorporated in Unit. Indicates the

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

quantity of the item used in the breakout shown on

bers in alphameric sequence, cross-referenced to the

the illustration figure, which is prepared for a func-

illustration figure number and item number.

tional group, subfunctional group, or an assembly.

(2) Second. After finding the figure and item

4. Special Information

number, locate the figure and item number in the

a. Usable on codes are shown in the description

repair parts list.

column. Uncoded items are applicable to all models.

6. Abbreviations

Identification of the usable on codes used in this

Not applicable.

publication are:

Used on

Code

MK-731/ARC-51X

2BH

2CG

MK-731A/ARC-51X

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