Abbreviations - TM-5-4320-255-130030

b. When Federal stock number or reference is known:

(1) First. Using the Index of Federal Stock Numbers and

Reference Numbers find the pertinent Federal stock number or

reference number. This index is in ascending FSN sequence followed

by a list of reference numbers in alpha-numeric sequence, cross-

referenced to the illustration figure number and item number.

(2) Second. Using the Repair Parts Listing, find the assembly

group of the repair part and the illustration figure number and item

number referenced in the Index of Federal Stock Numbers and Reference

Numbers.

c. When the Federal stock number or- reference number is known

and the repair part is not illustrated:

Abbreviations

C-6.

C-7