Section V
T.O. 33A1-3-358-11/TM 11-6625-842-15
Paragraphs 5-23 to 5-27
NAVAIR 16-30APM239-2
g. CODE "LM" - DEPOT LEVEL MAINTENANCE ONLY; MOBILE DEPOT ACTIVITY. Code "LM"
identifies items to which all conditions of Code "L" apply except that repair will be accomplished by MDA.
If MDA cannot repair these items, they will determine whether these items should be condemned or sent to
the SRA.
5-23. NAVY SOURCE CODES AND DEFINITIONS.
5-24. P SERIES - PURCHASED ITEMS.
a.
P - Applied to items which are purchased in view of known or anticipated usage and which are
relatively simple to manufacture within the Navy if necessary.
b.
P1 - Applied to items which are purchased in view of known or anticipated usage and which are
difficult, impractical, or uneconomical to manufacture within the Navy.
c.
P2 - Applied to items for which little usage is anticipated, but which are purchased in limited
quantity for insurance purposes. Items coded "P2" are difficult to manufacture, require special tooling or
stock not normally available within the Naval Establishment or require long production lead time.
d.
P3 - Applied to repair parts items which are purchased in limited quantity in accordance with
life expectancy. Items coded "P3" are normally deteriorative in nature and may require special storage
conditions.
e.
P4 - Applied to items which are procured only for initial outfitting or for special control and not
carried in system stock for replenishment purposes.
5-25. M SERIES - MANUFACTURED ITEMS WHICH ARE NOT PURCHASED OR STOCK NUMBERED.
MF - Applied to items which are capable of being manufactured within Fleet activities. Items
a.
coded "MF" have no anticipated usage, or possess restrictive installation or storage factors. Code "MF"
will not be applied to an item when the same item is coded in the `T" series for other applications or the item
is carried in the Navy Supply System. With respect to support equipment, the naval manufacturing activity
may later alter the design of Source Codes "MF" material and/or processes provided that fit, function, use
and safety are not impaired.
b.
MO - Applied to items which are capable of being manufactured within overhaul/rework activities.
Items coded "MO" have no anticipated or relatively low usage, or possess restrictive installation or storage
factors or are manufactured more economically by the Government. Code "MO" will not be applied to an item
when the same item is coded in the "P" series for other application or the item is carried in the Navy Supply
System. With respect to support equipment, the naval manufacturing activity may alter the design of Source
Code "MC" material and/or processes provided that its function, use and safety are not impaired.
c.
MOA - Applied to items to be manufactured by the prime overhaul/rework point when required.
5-20. A SERIES - ASSEMBLE - ASSEMBLY NOT PURCHASED.
a.
AF - Applied to assemblies which are not purchased but which are to be assembled within
activities prior to installation. At least one of the items in the assembly must be a coded "P" item which
carries an inidividual part number and description.
b.
AO - Applied to assemblies which are not purchased but which are to be assembled within
overhaul/rework activities prior to installation. At least one of the items in the assembly must be a coded
"P" series item which carries an individual part number and description.
c.
AOA - Applied to items to be assembled by the prime overhaul/rework point when required.
5-27. N SERIES - NOT STOCKED NORMALLY - WILL BE PURCHASED ON DEMAND.
a.
N - Applied to items which do not meet established criteria for stocking and which are readily
available from commercial sources, i.e., nuts, bolts, screws, washers, shims, rivets, knobs, cotter pins
(not included in the Navy Supply System), protective closures, bead chains, adhesives, and cabinet locks.
b.
N1 - Applied to Bureau of Yards and Docks Supply Office ("Y") cognizance items under fraction
code "A" which are: (1) commerically available to all continental United States activities, (2) authorized for
local stocking at the retail level, (3) replenished by local purchase within the continental United States,
(4) carried in wholesale stock only for overseas and fleet activities, and (5) stock numbered and published
in the Navy Stock List of the Yards and Docks Supply Office.
5-4
