Specification summary of DIN 5254 as applied to circlip pliers (internal and external): the dimensions the standard fixes, the full size range supplied, and the related designations commonly cross-referenced.
DIN 5254 — Scope
The table below lists the dimensions catalogued for circlip pliers (internal and external) under DIN 5254. The scope of DIN 5254 itself is not summarised here — where a figure matters, confirm it against the published document.
Tolerance & Product Grades
Product grade is a concept from dimensional fastener standards and does not apply to DIN 5254. Tolerances for this part are the limits shown against each dimension in the table.
Dimensions Specified by DIN 5254
| Plier type | Ring it fits | Action | Tip forms available |
|---|---|---|---|
| external (DIN 5254 A) | shaft rings, DIN 471 | squeezing the handles opens the ring | straight, 45 degrees, 90 degrees |
| internal (DIN 5254 B) | bore rings, DIN 472 | squeezing the handles closes the ring | straight, 45 degrees, 90 degrees |
| convertible | both | reversible mechanism | straight |
| tip 0.9 mm | rings for shaft/bore 3 – 10 mm | n/a | n/a |
| tip 1.3 mm | rings for shaft/bore 10 – 25 mm | n/a | n/a |
| tip 1.8 mm | rings for shaft/bore 19 – 60 mm | n/a | n/a |
| tip 2.3 mm | rings for shaft/bore 40 – 100 mm | n/a | n/a |
Equivalent Standards
Where direct equivalents exist (ISO ↔ DIN, ISO ↔ ASME), they are listed on the parent Circlip Pliers (Internal and External) page.
Always confirm against the dimensions on this page, since some "equivalent" standards differ in tolerances and head geometry.
Companion Standards
A complete specification for circlip pliers (internal and external) normally cites several documents: one for the geometry, one for the material or mechanical properties, and one for the finish. DIN 5254 is one of them, not all of them.
Custom manufacturing · Made to drawing
Need a fastener tool to this standard in a non-standard size?
Parts built to DIN 5254 are already in the catalog, so a special is usually a variation on existing tooling rather than a new design — which is what keeps the cost down.
Minimum order from 2,000 pieces; samples within 7 days of drawing approval.
