Circlips by size
30 nominal sizes across 55 parts. 22 of them exist in more than one fit — the same number means a different part depending on whether the groove is on a shaft or in a bore.
1.5 mm
E-clip
1.9 mm
E-clip
2.3 mm
E-clip
3 mm
External circlip
3.2 mm
E-clip
4 mm
External circlip · E-clip
5 mm
External circlip · E-clip
6 mm
External circlip · E-clip
7 mm
External circlip · E-clip
8 mm
External circlip · Internal circlip · E-clip
9 mm
External circlip · Internal circlip · E-clip
10 mm
External circlip · Internal circlip · E-clip
11 mm
External circlip · Internal circlip
12 mm
External circlip · Internal circlip
13 mm
External circlip · Internal circlip
14 mm
External circlip · Internal circlip
15 mm
External circlip · Internal circlip
16 mm
External circlip · Internal circlip
17 mm
External circlip · Internal circlip
18 mm
External circlip · Internal circlip
19 mm
External circlip · Internal circlip
20 mm
External circlip · Internal circlip
21 mm
External circlip · Internal circlip
22 mm
External circlip · Internal circlip
24 mm
External circlip · Internal circlip
25 mm
External circlip · Internal circlip
26 mm
External circlip · Internal circlip
28 mm
Internal circlip
30 mm
Internal circlip
31 mm
Internal circlip
Measuring first
The nominal size is the shaft, bore or groove the ring fits — never a dimension of the ring itself. Measuring an old ring across its widest point gives a number that appears nowhere in this list.
How to measure for a circlip