IBM Aptiva 2142 - Manual (Page 171)

Parts Catalog
How to Use This Parts Catalog
SIMILAR ASSEMBLIES: If two assemblies contain a majority of identical
parts, they are broken down on the same list. Common parts are shown by
one index number. Parts peculiar to one or the other of the assemblies are
listed separately and identified by description.
AR: (As Required) in the Units column indicates that the quantity is not
the same for all machines.
NP: (Non-Procurable) in the Units column indicates that the part is
non-procurable and that the individual parts or the next higher assembly
should be ordered.
NR: (Not Recommended) in the Units column indicates that the part is
procurable but not recommended for field replacement, and that the next
higher assembly should be ordered.
NS: (Not Shown)
R: (Restricted) in the Units column indicates that the part has a restricted
availability.
EMEA: indicates that the part is used in models intended for Europe, the
Middle East, and Africa (EMEA).
Note: See the Appendix B, “Model/Monitor Configurations and FRU Part
Numbers” on page B-1 for model specifications.
Copyright IBM Corp. 1997, 1998 7-1