SOURCE, MAINTENANCE, AND RECOVERABILITY (SMR) CODE

AIR FORCE

T.O. 10M1-8-4-4

TM 11-5895-1044-24P

ARMY

TM SL-4-08419A

MARINE CORPS

Example

PLATE

SCREW (AP)

WASHER (AP)

CONNECTOR

1-15. USABLE ON CODES. Part variations within groups or models are identified by a symbol in the Usable on Code

column of the Maintenance Parts List. See table 1-3 for explanation. The absence of a code or symbol in the Usable on

Code column indicates that the parts so shown are usable as replacements on all models or groups covered by this

publication.

1-16. SOURCE, MAINTENANCE, AND RECOVERABILITY (SMR) CODE. This manual contains Joint Military Services

Uniform SMR codes only. Definitions of these SMR codes are available in T.O. 00-25-195.

1-17.

SECTION Ill-NUMERICAL INDEX.

1-18. The Numerical Index contains a complete alphanumerical listing of all the part numbers appearing in the

Maintenance Parts List with applicable figure and index numbers for each part. Part numbers listed that do not appear in

the Maintenance Parts List are followed by cross-reference note to a new part number, next higher assembly or numbers

under which parts are to be requisitioned.

1-19. PART NUMBER. This column contains all the part numbers listed in accordance with the alphanumerical part

number filing system described below.

1-20. Part number arrangement starts with the left-hand figure or letter and continues from left to right, one position at a

time.

1-21. The order of precedence for the first position is as follows:

a. Letters A through Z

b. Numeral 0 through 9

1-22. The order of precedence in the second and succeeding positions is as follows:

a. Space

b. Symbol

c. Letter A through Z

d. Numerals 0 through 9

1-23. NATIONAL STOCK NUMBER. This column contains the assigned National Stock Number for the part number.

When a National Stock Number has not been assigned, a class code will be used for the U.S. Marine Corps and U.S.

Army only.

1-24. FIGURE AND INDEX NUMBER. This column contains figure and index numbers which are used to locate parts in

the Maintenance Parts List. When an item is not assigned an index number, the figure and index number of the preceding

part in the Maintenance Parts List is used. The letter "F" precedes the figure number, i.e., F7-6, to mean "follows." The

entry 7/2-81 means that reference is made to index-81 on illustration sheet 2 of figure 7.

1-3