A45 · Reference edition 2026.11
Component stacks — Review and interpretation
A stack record needs an ordered sequence from the base to the part contact. Component IDs alone do not establish assembled height.
Scope and purpose
Review the record before drawing a conclusion. Look for missing context, ambiguous labels and claims that exceed the evidence. The purpose is to identify what can be understood from the record and what still requires a separate assessment.
Working notes
This reference collection concerns light, offline dimensional-inspection layouts. It brings locating concepts, component descriptions and revision records together without substituting for an engineered fixture design. The drawings are original explanatory diagrams. Reference IDs identify documents, not commercially tested products. Read the scope and limitations alongside each example, and keep the actual part drawing and inspection requirements available when reviewing a proposed layout.
Practical example
List base interface, riser, support body and contact cap as separate rows.
| Reference record | Interpretation |
|---|---|
| A45 | Component stacks |
| Scope and purpose | A stack record needs an ordered sequence from the base to the part contact. Component IDs alone do not establish assembled height. |
| Limits and interpretation | Do not sum nominal catalogue heights into an unsupported tolerance claim. |
Review checklist
Read the record without relying on memory; check every label; identify uncertainty; decide whether a specialist review is required; retain the original observation.