TM 9-6650-212-34P
to last digit of the number to indicate hun-
(1) First. Using the table of contents deter-
d r e d t h s , and multiplying the decimal factor by
m i n e the assembly group, within which the re-
t h e parts quantity authorized in the 51-100 al-
pair part belongs. This is necessary since illus-
l o w a n c e column. Example, authorized allowance
trations are prepared for assembly groups and
for 51-100 equipment is 40; for 150 equipments
listings are divided into the same groups.
multiply 40 by 1.50 or 60 parts required.
(2) S e c o n d . Find the illustration covering
g. 1-Year Allowances Per 100 Equipments/
the assembly group to which the repair part
Contingency Planning Purposes, Column 8. T h i s
belongs.
c o l u m n indicates opposite the first appearance
of each item the total quantity required for dis-
(3) Third. Identify the repair part on the il-
tribution and contingency planning purposes.
l u s t r a t i o n and note the illustration figure and
T h e range of items indicates total quantities of
item number of the repair part.
all authorized items required to provide for ade-
quate support of 100 equipments for one year.
(4) Fourth. Using the Repair Parts Listing,
find the assembly group to which the repair part
h. Depot Maintenance Allowance Per 100
b e l o n g s and locate the illustration figure and
E q u i p m e n t s , C o l u m n 9 . This column indicates
item number noted on the illustration.
o p p o s i t e the first appearance of each item, the
t o t a l quantity authorized for depot maintenance
b. W h e n F e d e r a l S t o c k n u m b e r o r r e f e r e n c e
o f 100 equipments. Subsequent appearances of
number is known:
the same item will have the letters "REF" in the
a l l o w a n c e column. Items authorized for use as
(1) First. Using the Index of Federal Stock
r e q u i r e d but not for initial stockage are identi-
Numbers and Reference Numbers find the perti-
fied with an asterisk in the allowance column.
nent Federal stock number or reference number.
T h i s index is in ascending FSN sequence fol-
i. Illustration, Column 10. This column is di-
lowed by a list of reference numbers in ascend-
vided as follows:
ing alpha-numeric sequence, cross-referenced to
the illustration figure number and item number.
(1) Figure number, c o l u m n 1 0 a . I n d i c a t e s
t h e f i g u r e number of the illustration in which
( 2 ) Second. Using the Repair Part Listing,
t h e item is shown.
f i n d the assembly group of the repair part and
t h e illustration figure number and item number
(2) Item number, Column 10b. Indicates the
r e f e r e n c e d in the Index of Federal Stock Num-
callout number used to reference the item in the
bers and Reference Numbers.
illustration.
6. Abbreviations.
4. Special Information.
Abbrevation
Explanation
a. Action change codes indicated in the left
al . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . aluminum
hand margin of the listing page denote the fol-
aly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . alloy
lowing
andz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . anodize
ax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . axial
N-Indicates
an added item not included in
bfl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . back focal length
previous
publications.
brz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . bronze
cd pl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . cadmium plate
C-Indicates
a change in data.
chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . chamfer
F-Indicates
a change in FSN only.
cp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . cone point
cres . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . corrosion resistant steel
b. To maintain disassembly sequence in this
crm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . chrome
m a n u a l , a sequence number in parentheses will
csk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . countersunk
da . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . digital-to-analog
be displayed immediately to the right of the call-
devn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . deviation
out number on the illustration.
dia . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . diameter
dr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . drive
5. How to locate Repair Parts.
efl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . effect focal length
a. W h e n F e d e r a l S t o c k n u m b e r o r r e f e r e n c e
equiv . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . equivalent
et . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . edge thickness
number is unknown:
4