TM 55-4920-221-14
NF................................ American National Fine
same item will have an entry of REF in the allowance
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column. Items authorized for use as required but not for
no. ............................... number(s)
initial stockage are identified with an asterisk (*) in the
nom ............................. nominal
allowance column.
NPT ............................. American Standard Taper
(2) The quantitative allowances for DS/GS
Pipe Threads
levels of maintenance will represent stockage for a 30-
o/a ............................... over-all
day period for the number of equipments supported.
od ................................ outside diameter(s)
(3) Determination of the total quantity of parts
PG .............................. Package
required for maintenance of more than 100 of these
rpm .............................. revolutions per minute
equipments can be accomplished by converting the
sp................................. single-pole
equipment quantity to a decimal factor by placing a
spdt .............................. single-pole, double-throw
decimal point before the next to last digit of the number
thk................................ thick(ness)
to indicate hundredths, and multiplying the decimal
uf ................................. microfarad(s)
factor by the parts quantity authorized in the 51-100
u/w ............................... used with
allowance column. Example: authorized allowance for
v .................................. volt(s)
51-100 equipments is 40; for 150 equipments multiply
VX................................ Five
40 by 1.50 or 60 parts required.
w .................................. watt(s)
g. One-year Allowance Per 100 Equipment/
w .................................. wide, width
Contingency Planning Purposes. When applicable this
w/ ................................. with
column indicates opposite the first appearance of each
XX ................................ ten
item the total quantity required for distribution and
5. FEDERAL SUPPLY CODES FOR
contingency planning purposes.
The range of
MANUFACTURER
items indicates total quantities of all authorized items
CODE
MANUFACTURER
required to provide for adequate support of 100
000000 .......Ordnance Corps.
equipments for one year.
01364.........Allied Radio Corp.
h. Depot Maintenance Per 100 Equipments. (Not
100 No. Western
applicable.)
Chicago, Illinois 60612
i. Illustration.
04009.........Arrow-Hart and Hegeman Electric Co.
(1) Figure number.
Indicates the figure
103 Hawthorne St.
number of the illustration in which the item is shown.
Hartford, Connecticut 06106
05684.........Barkelew Electric Mfg. Co.
(2) Item number.
Indicates the call-out
1905 Columbia
number used to reference the item in the illustration.
Middletown, Ohio 45042
4. ABBREVIATIONS.
15605.........Cutler-Hammer, Inc.
ABBREVIATION
EXPLANATION
4201 No. 27th St.
ac................................. alternating current
Milwaukee, Wisconsin 53216
amp ............................. ampere (s)
24446.........General Electric Co.
assy ............................. assembly (ies)
1 River Road
AWG............................ American Wire Gage
Schenectady, New York 12305
dc................................. direct current
31356.........J-B-T Instruments, Inc.
dia................................ diameter (s)
424 Chapel St.
dpdt.............................. double-pole, double throw
P. O. Box 1818
dt ................................. double-throw
New Haven, Connecticut 06508
EA................................ Each
38056.........Dresser Industries, Inc.
ft .................................. foot (feet)
Industrial Valve and Instrument Div.
FT ................................ Foot
250 E. Main St.
GR ............................... Gross
Stratford, Connecticut 06497
hp ................................ horsepower
44655.........0hmite Mfg. Co.
HD ............................... Hundred
3601 W. Howard St.
in.................................. inch (es)
Skokie, Illinois 60076
Ig ................................. long (length)
54294.........Shallcross Mfg. Co.
MAKEFR ..................... make from
24 Preston St.
Selma, North Carolina 27576
ABBREVIATION
EXPLANATION
57184.........The States Co.
mtg .............................. mounting(s)
19 New Park Ave.
mv ............................... millivolt(s)
Hartford, Connecticut 06106
NC ............................... American National Coarse
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