Indicates the primary number used by the manufacturer
(individual, company, firm, corporation, or Government activity), which controls
the design and characteristics of the item by means of its engineering drawings,
specifications, standards and inspection requirements to identify an item or range
When a stock numbered item is requisitioned, the item received may have
a different part number than the part being replaced.
Indicates the Federal item name and, if required, a minimum
description to identify the item.
Items that are included in kits and sets are listed
below the name of the kit or set with the quantity of each item in the kit or set
indicated in the quantity incorporated in unit column.
When the part to be used
differs between serial numbers of the same model, the effective serial numbers are
shown as the last line of the description.
In the Special Tools List, the initial
basis of issue (BOI) appears at the last line in the entry for each special tool,
special TMDE, and other special support equipment.
When density of equipments
supported exceeds density spread indicated in the basis of issue, the total authori-
zation is increased accordingly.
Unit of Measure (U/M).
Indicates the standard of the basic quantity of the
listed item as used in performing the actual maintenance function. This measure is
e x p r e s s e d b y a t w o - c h a r a c t e r a l p h a b e t i c a l a b b r e v i a t i o n ( e . g . , e a , i n , p r , e t c ) .
When the unit of measure differs from the unit of issue, the lowest unit of issue that
will satisfy the required units of measure will be requisitioned.
h . Q u a n t i t y I n c o r p o r a t e d i n U n i t.
Indicates the quantity of the item used in
the breakout shown on the illustration figure, which is prepared for a functional
group, subfunctional group, or an assembly.
A V appearing in this column in
lieu of a quantity indicates that no specific quantity is applicable, (e.g., shims,
s p a c e r s , e t c ) .
a. Detailed manufacturing instructions for items source coded to be manufac-
tured or fabricated are found in TM 55-2835-205-23. Bulk materials required to
manufacture items are listed in Bulk Material Group of this manual.
Detailed assembly instructions for items source coded to be assembled are
found in TM 55-2835-205-23.
Assembly components are listed immediately following
the item to be assembled.
The following publications pertain to the APU and its components:
Publication and Short Title
Aviation Unit and Intermediate Maintenance, APU
Depot Maintenance, APU
When details of an assembly are shown on another text page, the descrip-
tion of that assembly is followed by a notation stating where these details can be
161954-100, Fuel Control, See figure 6 for Breakdown. The
parts that make up the Fuel Control will be found on the text listing for figure 6.