Equivalent Standards

DIN 471 Dimensions for Circlip / External Retaining Ring

d4	s	d3	a max.	b approx.
4	0.4	3.7	2.2	0.9
5	0.6	4.7	2.5	1.1
6	0.7	5.6	2.7	1.3
7	0.8	6.5	3.1	1.4
8	0.8	7.4	3.2	1.5
9	1	8.4	3.3	1.7
10	1	9.3	3.3	1.8
11	1	10.2	3.3	1.8
12	1	11	3.3	1.8
13	1	11.9	3.4	2
14	1	12.9	3.5	2.1
15	1	13.8	3.6	2.2
16	1	14.7	3.7	2.2
17	1	15.7	3.8	2.3
18	1.2	16.5	3.9	2.4
19	1.2	17.5	3.9	2.5
20	1.2	18.5	4	2.6
21	1.2	19.5	4.1	2.7
22	1.2	20.5	4.2	2.8
23	1.2	21.4	4.3	2.9
24	1.2	22.2	4.4	3
25	1.2	23.2	4.4	3
26	1.2	24.2	4.5	3.1
27	1.2	25.1	4.6	3.1
28	1.5	25.9	4.7	3.2
29	1.5	26.9	4.8	3.4
30	1.5	27.9	5	3.5
32	1.5	29.6	5.2	3.6
33	1.5	30.5	5.3	3.7
34	1.5	31.5	5.4	3.8
35	1.5	32.2	5.6	3.9
36	1.75	33.2	5.6	4
37	1.75	34.2	5.7	4.1
38	1.75	35.2	5.8	4.2
40	1.75	36.5	6	4.4
42	1.75	38.5	6.5	4.5
45	1.75	41.5	6.7	4.7
47	1.75	43.5	6.8	4.9
48	1.75	44.5	6.9	5
50	2	45.8	6.9	5.1
52	2	47.8	7	5.2
55	2	50.8	7.2	5.4
56	2	51.8	7.3	5.5
57	2	52.8	7.3	5.6
58	2	53.8	7.3	5.65
60	2	55.8	7.4	5.8
62	2	57.8	7.5	6
63	2	58.8	7.6	6.2
65	2.5	60.8	7.8	6.3
68	2.5	63.5	8	6.5
70	2.5	65.5	8.1	6.6
72	2.5	67.5	8.2	6.8
75	2.5	70.5	8.4	7
78	2.5	73.5	8.6	7.3
80	2.5	74.5	8.7	7.4
82	2.5	76.5	8.7	7.6
85	3	79.5	8.8	7.8
88	3	82.5	8.8	8
90	3	84.5	9.4	8.2
95	3	89.5	9.6	8.6
100	3	94.5	9.9	9
105	4	98	10.1	9.3
110	4	103	10.6	9.6
115	4	108	11	9.8
120	4	113	11.4	10.2
125	4	118	11.6	10.4
130	4	123	11.8	10.7
135	4	128	12	11
140	4	133	12.2	11.2
145	4	138	13	11.5
150	4	142	13	11.8
155	4	146	13.3	12
160	4	151	13.5	12.2
165	4	155.5	13.5	12.5
170	4	160.5	13.5	12.9
175	4	165.5	14.2	12.9
180	4	170.5	14.2	13.5
185	4	175.5	14.2	13.5
190	4	180.5	14.2	14
195	4	185.5	14.2	14
200	4	190.5	14.2	14
210	5	198	14.2	14
215	5	203	14.2	14
220	5	208	14.2	14
230	5	218	14.2	14
240	5	228	14.2	14
250	5	238	14.2	14
260	5	245	16.2	16
270	5	255	16.2	16
280	5	265	16.2	16
290	5	275	16.2	16
300	5	285	16.2	16
320	6	303	-	-
340	6	323	-	-
380	6	363	-	-
500	7	480	-	-