16 mm External Retaining Ring (Shaft Circlip), DIN 471

For a 16 mm shaft, grooved to 15.2 mm: the external retaining ring (DIN 471), 1 mm thick. Download it as simplified STEP files.

How these parts are made, and what the levels mean: read the method

• Also searched as: 16 mm circlip
• Model id: din471-d16
• Standard: DIN 471:2011 · size 16 mm

Files

Part key	Simplified
din471-d16	STEP

Dimensions

Symbol	Name	min	nom	max	Modeled	Rule	Level
s	Ring thickness		1		1	nominal	L1
s_lim	Ring thickness, limits	0.94		1	0.97	midpoint of min–max	L0 (max: one source)
d3	Free diameter		14.7		14.7	nominal	L1
d3_lim	Free diameter, limits	14.34		14.8	14.57	midpoint of min–max	L1
a	Lug height			3.7	3.7	single limit (max), modeled at the limit	L1
b	Radial width		2.2 ref		2.2	reference value	L1
d5	Plier hole diameter	1.7			1.7	single limit (min), modeled at the limit	L1
d2	Groove diameter		15.2		15.2	nominal	L1
m	Groove width		1.1		1.1	nominal	L1
n	Groove edge margin	1.2			1.2	single limit (min), modeled at the limit	L1

Drawing

As a PDF: CC-DIN471-SZ-16.pdf.

The 16 mm external retaining ring beside the 15 mm and the 17 mm

The 16 mm is number 14, counting from the smallest, of the 18 DIN 471 external retaining rings published here, from 3 mm to 20 mm.

• Ring thickness (s): 1 mm on the 16 mm external retaining ring, the same on the 15 mm and the 17 mm.
• Ring thickness, limits (s_lim): 0.94 to 1 mm on the 16 mm external retaining ring, the same on the 15 mm and the 17 mm.
• Free diameter (d3): 14.7 mm on the 16 mm external retaining ring, against 13.8 mm on the 15 mm and 15.7 mm on the 17 mm.
• Free diameter, limits (d3_lim): 14.34 to 14.8 mm on the 16 mm external retaining ring, against 13.44 to 13.9 mm on the 15 mm and 15.34 to 15.8 mm on the 17 mm.
• Lug height (a): up to 3.7 mm on the 16 mm external retaining ring, against up to 3.6 mm on the 15 mm and up to 3.8 mm on the 17 mm.
• Radial width (b): 2.2 mm (reference) on the 16 mm external retaining ring, against 2.2 mm (reference) on the 15 mm and 2.3 mm (reference) on the 17 mm.
• Plier hole diameter (d5): at least 1.7 mm on the 16 mm external retaining ring, the same on the 15 mm and the 17 mm.
• Groove diameter (d2): 15.2 mm on the 16 mm external retaining ring, against 14.3 mm on the 15 mm and 16.2 mm on the 17 mm.

Other sizes

• One size smaller: 15 mm External Retaining Ring (Shaft Circlip), DIN 471, 15 mm shaft, 14.3 mm groove, 1 mm thick.
• One size larger: 17 mm External Retaining Ring (Shaft Circlip), DIN 471, 17 mm shaft, 16.2 mm groove, 1 mm thick.

Documents

• CC-DIN471-DS-16.pdf: 16 datasheet: values with levels, sources
• CC-DIN471-SZ-16.pdf: 16 drawing: this size's values on the views
• parts.json: the part record of this size (the platform contract)

Sources

fasten-it-din471, fasteners-eu-din471, hc-maschinentechnik-din471, seeger-din471. Full citations: the method page and this size's datasheet.

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