ARTEX PRODUCTS / ACR ELECTRONICS, INC
DESCRIPTION, OPERATION, INSTALLATION AND MAINTENANCE MANUAL
B406-4 (453-5004)
Page 66 of 70
25-62-03
3)
Assemblies, subassemblies, and detail parts subject to modification, deletion, addition, or replacement
by an issued service bulletin, are annotated to indicate both pre- and post-service bulletin
configura
tions. The term (PRE SB XXXX) in the “Nomenclature” column designates the original
configuration, and the term (POST SB XXXX) identifies assemblies and parts after the modification has
been completed.
4)
The terms defined below are used when applicable to indicate the interchangeability of parts.
TERM
ABBREVIATION
DEFINITION
Alternate
ALT
The listed part is alternate to, and interchangeable
with, other parts within the same item number
variant group or other item numbers if designated.
Superceded By
SUPSD BY
The part is replaced by and is not interchangeable
with the item number designated in the notation.
Supersedes
SUPSDS
The part replaces and is not interchangeable with
the item number designated in the notation.
Replaced By
REPLD BY
The part is replaced by and is interchangeable with
the item number designated in the notation.
Replaces
REPLS
The part replaces and is interchangeable with the
item number designated in the notation.
SUBTASK 25-62-03-990-004
D.
UPA (Units Per Assembly) Column
1)
The quantity shown in this column represents the units required for one next higher assembly or, when
referring to attaching parts, the quantity to attach one such item.
2)
The abbreviation RF (reference) indicates the end item assembly is listed for reference purposes.
