Figure 3-4.—Allowance parts list (APL), Section B.
different data elements are numbered and refer to the
numbers in figure 3-3.
PART II, SECTION B–CIRCUIT SYMBOL
DATA.– Section B (fig. 3-4) is furnished as microfiche
with the COSAL. It contains those CSNs that appear in
the technical manual for the equipment and is arranged
in circuit symbol number (CSN) sequence. The CSNs
are cross referenced to the NIIN/PNICN/TNICN part
number that appears in Section A. Table 3-3 identifies
the data elements of the APL (Part II, Section B) and
refers to the numbers in figure 3-4.
PART II, SECTION C–ALLOWANCE
EQUIPAGE LIST (AEL).– The AEL is a technical and
supply document prepared for various categories of
equipage associated with mechanical, electrical,
electronic, and ordnance systems. When an AEL is
written for a system, it identifies the items required to
operate the system and the repair parts required to
maintain it. The AEL lists specific information for each
item, such as name, NSN, unit of issue, quantity needed,
and quantity allowed on board. AELs are filed in
numerical sequence by AEL identification number. As a
technician, you should be aware of where all pertinent
AELs can be found.
PART III, SECTIONS A, B, CF, AND
CR-STOCK NUMBER SEQUENCE LISTS
(SNSL).– The SNSL is a product of today’s data
processing capability and is a great time-saver in
controlling parts and other items. Consider the amount
of work that would be necessary to determine how many
of what items to order by just using the APL and AELs.
The SNSL has four listings of all NSNs that apply
to your unit. They are Section A, Storeroom Items
(SRIs); Section B, Operating Space Items (OSIs); and
Section CF, Maintenance Assistance Module (MAM);
and Section CR, Ready Service Spares (RSS). These
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