TM 55-4920-429-13
5-3. Index of Part Numbers.
This index contains a complete listing of all items shown in the Detailed Parts List compiled in
alphanumeric sequence. The index is arranged in columns as follows:
a. The Part Number Column contains the part numbers of the manufacturer of the part or the part
number assigned to it by the Boeing Vertol Co. Requisition parts thru TM 55-4920-429-23P.
(1) Part number arrangement begins at the extreme left position and continues, one position at a
time, until all parts are arranged in sequence. The order of precedence, beginning the part number ar-
rangement at the extreme left (first) position, is as follows:
Letters A through Z for the alpha index
Numerals O through 9 for the numeric index
(2) The order of precedence in continuing the part number arrangement on the second and suc-
ceeding positions of the part number from left to right is as follows:
Space (blank column)
Diagonal (/)
Point (.)
Dash or hyphen (-)
Letters A through Z, then
Numerals O through 9
Alphabetic (letter) O is listed as numerical zero’s.
Examples of part number sequence:
ABC0158
AN509-10
AN509C10R7
A39539-10-001
ZB45-37C
10-60732-3
10001
11
112304
5008CW
65-2716-27
6553
b. The Figure and Index number columns contain the figure and index number listing/s assigned to
a part.
INDEX OF PART NUMBERS
PART NUMBER
FIGURE
INDEX
LH90/1
5-3
74
MS17322-10
5-3
78
MS17322-6
5-3
78
MS18237-lWT
5-3
75
MS21044 C04
5-2
6
MS21044 C04
5-3
4
MS21044 C06
5-3
48
MS24523-27
5-3
87
MS24523-22
5-3
79
5-3
