Basic External (Metric) – DIN 471

Tapered design principle permits rings to maintain constant circularity and pressure against the bottom of the groove.

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Product Information

Tapered design principle permits rings to maintain constant circularity and pressure against the bottom of the groove.

DIN: 471
Standard Material: Carbon spring steel
Standard Finish: Phosphate & oil
Dimensions: Millimeters (mm)

With ISO9001: 2015 approval incorporating Design Status, our qualified engineering staff are able to offer a completely free of charge engineering service and are available to assist with part selection, custom design, application requirements, material selection and more.

Applications are discussed in-depth, first-off design data and drawings are submitted for approval to ensure our customers are provided with the correct design, first time. However, on those rare occasions when modifications are necessary, our no-tooling process and flexible manufacturing procedures means the production of prototypes is easily and economically achieved without onerous tooling charges and long lead times.

At TFC we realise that Quality runs through the entire business, not just our products. We have continually invested in the right people to provide the superior market knowledge and customer service.

Our supply chain partners, from manufacturers to logistics and information technology are carefully chosen to ÿt our commitment to quality

Quality assured since 1981
ISO 9001:2015
Aerospace AS9100C & AS9120A

All products are batch traceable and can be supplied in accordance with REACH, RoHs and Weee.

Certificates of Conformity are available on request and Full material certification is also available on many items.

		Groove					Circlip
Part Code	Shaft S	G	Tol	W	Tol	n	t	Tol	D	Tol	C	C1
ND3100-003	3.0	2.8	+0.00 -0.04	0.5	+0.14 -0.00	0.3	0.40	+0.00 -0.05	2.7	+0.04 -0.15	7.0	6.6
ND3100-004	4.0	3.8	+0.00 -0.048	0.5		0.3	0.40		3.7		8.6	8.2
ND3100-005	5.0	4.8		0.7		0.3	0.60		4.7		10.3	9.8
ND3100-006	6.0	5.7		0.8		0.5	0.70		5.6		11.7	11.1
ND3100-007	7.0	6.7	+0.00 -0.06	0.9		0.5	0.80		6.5	+0.06 -0.18	13.5	12.9
ND3100-008	8.0	7.6		0.9		0.6	0.80		7.4		14.7	14.0
ND3100-009	9.0	8.6		1.1		0.6	1.00	+0.00 -0.06	8.4		16.0	15.2
ND3100-010	10.0	9.6		1.1		0.6	1.00		9.3	+0.10 -0.36	17.0	16.2
ND3100-011	11.0	10.5	+0.00 -0.11	1.1		0.8	1.00		10.2		18.0	17.1
ND3100-012	12.0	11.5		1.1		0.8	1.00		11		19.0	18.1
ND3100-013	13.0	12.4		1.1		0.9	1.00		11.9		20.2	19.2
ND3100-014	14.0	13.4		1.1		0.9	1.00		12.9		21.4	20.4
ND3100-015	15.0	14.3		1.1		1.1	1.00		13.8		22.6	21.5
ND3100-016	16.0	15.2		1.1		1.2	1.00		14.7		23.8	22.6
ND3100-017	17.0	16.2		1.1		1.2	1.00		15.7		25.0	23.8
ND3100-018	18.0	17.0		1.3		1.5	1.20		16.5		26.2	24.8
ND3100-019	19.0	18.0		1.3		1.5	1.20		17.5		27.2	25.8
ND3100-020	20.0	19.0	+0.00 -0.13	1.3		1.5	1.20		18.5	+0.13 -0.42	28.4	27.0
ND3100-021	21.0	20.0		1.3		1.5	1.20		19.5		29.6	28.2
ND3100-022	22.0	21.0		1.3		1.5	1.20		20.5		30.8	29.4
ND3100-023	23.0	22.0		1.3		1.5	1.20		21.5		32.0	30.6
ND3100-024	24.0	22.9	+0.00 -0.21	1.3		1.7	1.20		22.2	+0.21 -0.42	33.2	31.7
ND3100-025	25.0	23.9		1.3		1.7	1.20		23.2		34.2	32.7
ND3100-026	26.0	24.9		1.3		1.7	1.20		24.2		35.5	33.9
ND3100-027	27.0	25.6		1.3		2.1	1.20		24.9		36.7	34.8
ND3100-028	28.0	26.6		1.6		2.1	1.50		25.9		37.9	36.0
ND3100-029	29.0	27.6		1.6		2.1	1.50		26.9		39.1	37.2
ND3100-030	30.0	28.6		1.6		2.1	1.50		27.9		40.5	38.6
ND3100-032	32.0	30.3	+0.00 -0.25	1.6		2.6	1.50		29.6		43.0	40.7
ND3100-033	33.0	31.3		1.6		2.6	1.50		30.5	+0.25 -0.50	44.0	41.7
ND3100-034	34.0	32.3		1.6		2.6	1.50		31.5		45.4	43.1
ND3100-035	35.0	33.0		1.6		3.0	1.50		32.2		46.8	44.2
ND3100-036	36.0	34.0		1.85		3.0	1.75		33.2		47.8	45.2
ND3100-038	38.0	36.0		1.85		3.0	1.75		35.2		50.2	47.6
ND3100-040	40.0	37.5		1.85		3.8	1.75		36.5	+0.39 -0.90	52.6	49.5
ND3100-042	42.0	39.5		1.85		3.8	1.75		38.5		55.7	52.5
ND3100-045	45.0	42.5		1.85		3.8	1.75		41.5		59.1	55.9
ND3100-046	46.0	43.5		1.85		3.8	1.75		42.5		60.1	56.9
ND3100-047	47.0	44.5		1.85		3.8	1.75		43.5		61.3	58.1
ND3100-048	48.0	45.5		1.85		3.8	1.75		44.5		62.5	59.3
ND3100-050	50.0	47.0		2.15		4.5	2.00	+0.00 -0.07	45.8		64.5	60.8
ND3100-052	52.0	49.0		2.15		4.5	2.00		47.8		66.7	63.0
ND3100-054	54.0	51.0	+0.00 -0.30	2.15		4.5	2.00		49.8	+0.46 -1.10	69.0	65.2
ND3100-055	55.0	52.0		2.15		4.5	2.00		50.8		70.2	66.4
ND3100-056	56.0	53.0		2.15		4.5	2.00		51.8		71.6	67.6
ND3100-058	58.0	55.0		2.15		4.5	2.00		53.8		73.6	69.6
ND3100-060	60.0	57.0		2.15		4.5	2.00		55.8		75.6	71.8
ND3100-062	62.0	59.0		2.15		4.5	2.00		57.8		77.8	74.0
ND3100-063	63.0	60.0		2.15		4.5	2.00		58.8		79.0	75.2
ND3100-065	65.0	62.0		2.65		4.5	2.50		60.8		81.4	77.6
ND3100-067	67.0	64.0		2.65		4.5	2.50		62.5		83.6	79.8
ND3100-068	68.0	65.0		2.65		4.5	2.50		63.5		84.4	81.0
ND3100-070	70.0	67.0		2.65		4.5	2.50		65.5		87.0	83.2
ND3100-072	72.0	69.0		2.65		4.5	2.50		67.5		89.2	85.4
ND3100-075	75.0	72.0		2.65		4.5	2.50		70.5		92.7	88.8
ND3100-077	77.0	74.0		2.65		4.5	2.50		72.5		94.9	91.0
ND3100-078	78.0	75.0		2.65		4.5	2.50		73.5		96.1	92.2
ND3100-080	80.0	76.5		2.65		5.3	2.50		74.5		98.1	93.7
ND3100-082	82.0	78.5		2.65		5.3	2.50		76.5		100.3	95.9
ND3100-085	85.0	81.5	+0.00 -0.35	3.15	+0.18 -0.00	5.3	3.00	+0.00 -0.08	79.5		103.3	98.9
ND3100-088	88.0	84.5		3.15		5.3	3.00		82.5	+0.54 -1.30	106.5	102.0
ND3100-090	90.0	86.5		3.15		5.3	3.00		84.5		108.5	104.0
ND3100-095	95.0	91.5		3.15		5.3	3.00		89.5		114.8	111.0
ND3100-098	98.0	94.5		3.15		5.3	3.00		91.5		118.6	114.0
ND3100-100	100.0	96.5		3.15		5.3	3.00		94.5		120.2	116.0
ND3100-102	102.0	98.0	+0.00 -0.54	4.15		6.0	4.00	+0.00 -0.10	95		122.4	118.0
ND3100-105	105.0	101.0		4.15		6.0	4.00		98		126.2	122.0
ND3100-108	108.0	104.0		4.15		6.0	4.00		100		129.0	124.0
ND3100-110	110.0	106.0		4.15		6.0	4.00		103		131.2	127.0
ND3100-115	115.0	111.0		4.15		6.0	4.00		108		137.3	133.0
ND3100-120	120.0	116.0		4.15		6.0	4.00		113		143.1	138.0
ND3100-125	125.0	121.0	+0.00 -0.63	4.15		6.0	4.00		118		149.0	144.0
ND3100-130	130.0	126.0		4.15		6.0	4.00		123	+0.63 -1.50	154.4	150.0
ND3100-135	135.0	131.0		4.15		6.0	4.00		128		159.8	155.0
ND3100-140	140.0	136.0		4.15		6.0	4.00		133		165.2	160.0
ND3100-145	145.0	141.0		4.15		6.0	4.00		138		170.6	166.0
ND3100-150	150.0	145.0		4.15		7.5	4.00		142		177.3	171.0
ND3100-155	155.0	150.0		4.15		7.5	4.00		146		182.3	176.0
ND3100-160	160.0	155.0		4.15		7.5	4.00		151		188.0	182.0
ND3100-165	165.0	160.0		4.15		7.5	4.00		155.5		193.4	187.0