Bearing Lock Washers | McMaster-Carr

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For Bearing Nut Face Style

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Tab Width

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Specifications Met

For Bearing Nut Specifications Met

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RoHS

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Export Control Classification Number (ECCN)

EAR99

DFARS Specialty Metals

103 Products

Bearing Spring Lock Washers for Slotted Bearing Nuts

Designed for use with bearing nuts, these lock washers have a conical shape that presses like a spring against bearings, bushings, gears, and pulleys to hold them in place on your threaded shaft or spindle. They also have an inner tab that sits in the shaft or spindle’s keyway to prevent the nut from loosening.

Steel—Steel washers are strong and flexible.

Stainless Steel—Stainless steel washers are more corrosion and chemical resistant than steel washers.

External Tooth—Washers with external teeth grip components using their teeth, in addition to spring tension.

DIN 462 and DIN 5406—DIN 462 and DIN 5406 washers meet international standards for lock washer dimensions. Pair DIN 462 washers with DIN 1804 bearing nuts, and DIN 5406 washers with DIN 981 bearing nuts.

					Tab
	For Screw Size	ID	OD	Thk.	Wd.	Dp.	Overall Ht.	Tooth Location	Hardness	Specs. Met	For Bearing Nut Specs. Met		Each
For Chamfered Nuts







				Steel

				3/8"	0.406"	0.875"	0.046"	0.120"	0.063"	0.125"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	00000


				7/16"	0.484"	1.016"	0.046"	0.120"	0.064"	0.148"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	0000
				9/16"	0.601"	1.156"	0.046"	0.120"	0.066"	0.172"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	0000
				5/8"	0.679"	1.328"	0.046"	0.120"	0.067"	0.195"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	0000
				3/4"	0.801"	1.531"	0.046"	0.176"	0.062"	0.203"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	0000
				15/16"	0.989"	1.719"	0.054"	0.176"	0.072"	0.221"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	0000
				1 1/8"	1.193"	1.922"	0.054"	0.176"	0.093"	0.213"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	0000
				1 5/16"	1.333"	2.234"	0.067"	0.176"	0.106"	0.217"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	0000
				1 3/8"	1.396"	2.250"	0.054"	0.176"	0.094"	0.221"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	0000
				1 1/2"	1.583"	2.469"	0.063"	0.290"	0.095"	0.232"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	0000
				1 3/4"	1.792"	2.734"	0.063"	0.290"	0.096"	0.224"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	0000


				1 7/8"	1.992"	2.922"	0.063"	0.290"	0.097"	0.239"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	0000
				2 1/8"	2.182"	3.109"	0.068"	0.290"	0.103"	0.225"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	0000
				2 3/8"	2.400"	3.344"	0.068"	0.290"	0.124"	0.249"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	0000
				2 1/2"	2.588"	3.578"	0.068"	0.290"	1/8"	0.256"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	0000
				2 3/4"	2.791"	3.828"	0.068"	0.290"	1/8"	0.256"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	0000
				2 7/8"	2.973"	4.109"	0.077"	0.290"	0.135"	0.274"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	0000
				3 1/8"	3.177"	4.375"	0.077"	0.353"	0.132"	0.267"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	0000
				3 3/8"	3.395"	4.625"	0.077"	0.353"	0.133"	0.298"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	0000
				3 1/2"	3.582"	4.938"	0.100"	0.353"	0.155"	0.329"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	0000
				3 3/4"	3.800"	5.219"	0.100"	0.353"	0.156"	0.329"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	00000


				3 7/8"	3.988"	5.500"	0.100"	0.353"	0.171"	0.344"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	00000
				4 3/8"	4.395"	6.063"	0.132"	0.353"	0.203"	0.401"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	00000
				4 3/4"	4.801"	6.469"	0.132"	0.353"	0.204"	0.400"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	00000
				M10	10.000 mm	21.000 mm	1.000 mm	3.000 mm	1.500 mm	3.000 mm	External	Not Rated	DIN 5406	DIN 981	000000000	0000
				M12	12.000 mm	25.000 mm	1.000 mm	3.000 mm	1.500 mm	3.000 mm	External	Not Rated	DIN 5406	DIN 981	000000000	0000
				M15	15.000 mm	28.000 mm	1.000 mm	4.000 mm	1.500 mm	2.500 mm	External	Not Rated	DIN 5406	DIN 981	000000000	0000
				M17	17.000 mm	32.000 mm	1.000 mm	4.000 mm	1.500 mm	3.000 mm	External	Not Rated	DIN 5406	DIN 981	000000000	0000
				M20	20.000 mm	36.000 mm	1.000 mm	4.000 mm	1.500 mm	3.500 mm	External	Not Rated	DIN 5406	DIN 981	000000000	0000
				M25	25.000 mm	42.000 mm	1.250 mm	5.000 mm	2.000 mm	3.500 mm	External	Not Rated	DIN 5406	DIN 981	000000000	0000
				M30	30.000 mm	49.000 mm	1.250 mm	5.000 mm	2.500 mm	4.000 mm	External	Not Rated	DIN 5406	DIN 981	000000000	0000


				M35	35.000 mm	57.000 mm	1.250 mm	6.000 mm	2.500 mm	4.500 mm	External	Not Rated	DIN 5406	DIN 981	000000000	0000
				M40	40.000 mm	62.000 mm	1.250 mm	6.000 mm	2.500 mm	4.000 mm	External	Not Rated	DIN 5406	DIN 981	000000000	0000
				M45	45.000 mm	69.000 mm	1.250 mm	6.000 mm	2.500 mm	4.500 mm	External	Not Rated	DIN 5406	DIN 981	000000000	0000
				M50	50.000 mm	74.000 mm	1.250 mm	6.000 mm	2.500 mm	4.500 mm	External	Not Rated	DIN 5406	DIN 981	000000000	0000
				M55	55.000 mm	81.000 mm	1.250 mm	8.000 mm	2.500 mm	4.500 mm	External	Not Rated	DIN 5406	DIN 981	000000000	0000
				M60	60.000 mm	86.000 mm	1.500 mm	8.000 mm	2.500 mm	4.500 mm	External	Not Rated	DIN 5406	DIN 981	000000000	0000
				M65	65.000 mm	92.000 mm	1.500 mm	8.000 mm	2.500 mm	4.500 mm	External	Not Rated	DIN 5406	DIN 981	000000000	0000
				M70	70.000 mm	98.000 mm	1.500 mm	8.000 mm	3.500 mm	4.500 mm	External	Not Rated	DIN 5406	DIN 981	000000000	0000
				M75	75.000 mm	104.000 mm	1.500 mm	8.000 mm	3.500 mm	5.000 mm	External	Not Rated	DIN 5406	DIN 981	000000000	0000
				M80	80.000 mm	112.000 mm	1.750 mm	10.000 mm	3.500 mm	5.500 mm	External	Not Rated	DIN 5406	DIN 981	000000000	0000


				M85	85.000 mm	119.000 mm	1.750 mm	10.000 mm	3.500 mm	5.500 mm	External	Not Rated	DIN 5406	DIN 981	000000000	0000
				M90	90.000 mm	126.000 mm	1.750 mm	10.000 mm	3.500 mm	6.000 mm	External	Not Rated	DIN 5406	DIN 981	000000000	00000
				M95	95.000 mm	133.000 mm	1.750 mm	10.000 mm	3.500 mm	6.500 mm	External	Not Rated	DIN 5406	DIN 981	000000000	00000
				M100	100.000 mm	142.000 mm	1.750 mm	12.000 mm	3.500 mm	7.000 mm	External	Not Rated	DIN 5406	DIN 981	000000000	0000
M105				105.000 mm	145.000 mm	1.750 mm	12.000 mm	4.500 mm	6.000 mm	External	Not Rated	DIN 5406	DIN 981	000000000	0000
M110	110.000 mm			154.000 mm	1.750 mm	12.000 mm	4.500 mm	6.500 mm	External	Not Rated	DIN 5406	DIN 981	000000000	00000
M115	115.000 mm			159.000 mm	2.000 mm	12.000 mm	4.500 mm	7.000 mm	External	Not Rated	DIN 5406	DIN 981	000000000	00000
M120	120.000 mm			164.000 mm	2.000 mm	14.000 mm	5.000 mm	8.000 mm	External	Not Rated	DIN 5406	DIN 981	000000000	00000
M125	125.000 mm			170.000 mm	2.000 mm	14.000 mm	5.000 mm	7.000 mm	External	Not Rated	DIN 5406	DIN 981	000000000	00000
M130	130.000 mm	175.000 mm		2.000 mm	14.000 mm	5.000 mm	8.000 mm	External	Not Rated	DIN 5406	DIN 981	000000000	00000
M135	135.000 mm	185.000 mm	2.000 mm	14.000 mm	5.000 mm	8.000 mm	External	Not Rated	DIN 5406	DIN 981	000000000	00000
M140	140.000 mm	192.000 mm	2.000 mm	16.000 mm	5.000 mm	9.500 mm	External	Not Rated	DIN 5406	DIN 981	000000000	00000
M145	145.000 mm	202.000 mm	2.000 mm	16.000 mm	5.000 mm	9.000 mm	External	Not Rated	DIN 5406	DIN 981	000000000	00000
M150	150.000 mm	205.000 mm	2.000 mm	16.000 mm	5.000 mm	10.000 mm	External	Not Rated	DIN 5406	DIN 981	000000000	00000
M160	160.000 mm	217.000 mm	2.500 mm	18.000 mm	6.000 mm	10.500 mm	External	Not Rated	DIN 5406	DIN 981	000000000	000000
M170	170.000 mm	232.000 mm	2.500 mm	18.000 mm	6.000 mm	11.500 mm	External	Not Rated	DIN 5406	DIN 981	000000000	000000
M180	180.000 mm	242.000 mm	2.500 mm	20.000 mm	6.000 mm	11.500 mm	External	Not Rated	DIN 5406	DIN 981	000000000	000000
M220	220.000 mm	292.000 mm	3.000 mm	24.000 mm	7.000 mm	13.000 mm	External	Not Rated	DIN 5406	DIN 981	000000000	000000



		Stainless Steel

		3/8"	0.406"	0.875"	0.046"	0.120"	0.063"	0.125"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	0000


		7/16"	0.484"	1.106"	0.046"	0.120"	0.064"	0.148"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	0000
		9/16"	0.601"	1.156"	0.046"	0.120"	0.066"	0.172"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	0000
		5/8"	0.679"	1.328"	0.046"	0.120"	0.067"	0.195"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	0000
		3/4"	0.801"	1.531"	0.046"	0.176"	0.062"	0.203"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	0000
		15/16"	0.989"	1.719"	0.054"	0.176"	0.072"	0.221"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	0000
		1 1/8"	1.193"	1.922"	0.054"	0.176"	0.093"	0.213"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	00000
		1 3/8"	1.396"	2.250"	0.054"	0.176"	0.094"	0.221"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	00000
		1 1/2"	1.583"	2.469"	0.063"	0.290"	0.095"	0.232"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	00000
		1 3/4"	1.792"	2.734"	0.063"	0.290"	0.096"	0.224"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	00000
		1 7/8"	1.992"	2.922"	0.063"	0.290"	0.097"	0.239"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	00000


		2 1/8"	2.182"	3.109"	0.068"	0.290"	0.103"	0.225"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	00000
		2 3/8"	2.400"	3.344"	0.068"	0.290"	0.124"	0.249"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	00000
		2 1/2"	2.588"	3.578"	0.068"	0.290"	1/8"	0.256"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	00000
		2 3/4"	2.791"	3.828"	0.068"	0.290"	1/8"	0.256"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	00000
		2 7/8"	2.973"	4.109"	0.077"	0.290"	0.135"	0.274"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	00000
		3 1/8"	3.177"	4.375"	0.077"	0.353"	0.132"	0.267"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	000000
		3 3/8"	3.395"	4.625"	0.077"	0.353"	0.133"	0.298"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	000000
		3 1/2"	3.582"	4.938"	0.100"	0.353"	0.155"	0.329"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	000000
		3 3/4"	3.800"	5.219"	0.100"	0.353"	0.156"	0.329"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	000000
		3 7/8"	3.988"	5.500"	0.100"	0.353"	0.171"	0.344"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	000000


		4 3/8"	4.395"	6.063"	0.132"	0.353"	0.203"	0.401"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	000000
		4 3/4"	4.801"	6.469"	0.132"	0.353"	0.204"	0.400"	External	Not Rated	ANSI/ABMA 8.2	ANSI/ABMA 8.2	000000000	000000


		For Stepped Nuts







						Steel

						M8	8.000 mm	20.000 mm	0.800 mm	3.000 mm	2.000 mm	2.500 mm	—	Not Rated	DIN 462	DIN 1804	000000000	0000


						M10	10.000 mm	25.000 mm	0.800 mm	4.000 mm	2.500 mm	3.000 mm	—	Not Rated	DIN 462	DIN 1804	000000000	0000
						M12	12.000 mm	28.000 mm	0.800 mm	5.000 mm	2.500 mm	3.000 mm	—	Not Rated	DIN 462	DIN 1804	000000000	0000
						M14	14.000 mm	30.000 mm	0.800 mm	5.000 mm	2.500 mm	3.000 mm	—	Not Rated	DIN 462	DIN 1804	000000000	0000
						M15	15.000 mm	30.000 mm	0.800 mm	5.000 mm	2.500 mm	3.000 mm	—	Not Rated	—	—	000000000	0000
						M16	16.000 mm	32.000 mm	1.000 mm	5.000 mm	2.500 mm	3.000 mm	—	Not Rated	DIN 462	DIN 1804	000000000	0000
						M18	18.000 mm	34.000 mm	1.000 mm	5.000 mm	2.500 mm	4.000 mm	—	Not Rated	DIN 462	DIN 1804	000000000	0000
						M20	20.000 mm	36.000 mm	1.000 mm	6.000 mm	2.500 mm	4.000 mm	—	Not Rated	DIN 462	DIN 1804	000000000	0000
						M22	22.000 mm	40.000 mm	1.000 mm	6.000 mm	2.500 mm	4.000 mm	—	Not Rated	DIN 462	DIN 1804	000000000	0000
						M24	24.000 mm	42.000 mm	1.000 mm	6.000 mm	2.500 mm	4.000 mm	—	Not Rated	DIN 462	DIN 1804	000000000	0000
						M25	25.000 mm	42.000 mm	1.000 mm	6.000 mm	2.500 mm	4.000 mm	—	Not Rated	—	—	000000000	0000


						M28	28.000 mm	50.000 mm	1.000 mm	7.000 mm	2.500 mm	5.000 mm	—	Not Rated	DIN 462	DIN 1804	000000000	0000
						M30	30.000 mm	50.000 mm	1.200 mm	7.000 mm	2.500 mm	5.000 mm	—	Not Rated	DIN 462	DIN 1804	000000000	0000
						M32	32.000 mm	52.000 mm	1.200 mm	7.000 mm	2.500 mm	5.000 mm	—	Not Rated	DIN 462	DIN 1804	000000000	0000
						M35	35.000 mm	55.000 mm	1.200 mm	7.000 mm	2.500 mm	5.000 mm	—	Not Rated	DIN 462	DIN 1804	000000000	0000
M38						38.000 mm	58.000 mm	1.200 mm	8.000 mm	2.500 mm	5.000 mm	—	Not Rated	DIN 462	DIN 1804	000000000	0000
M40	40.000 mm					62.000 mm	1.200 mm	8.000 mm	2.500 mm	5.000 mm	—	Not Rated	DIN 462	DIN 1804	000000000	0000
M42	42.000 mm					62.000 mm	1.200 mm	8.000 mm	2.500 mm	5.000 mm	—	Not Rated	DIN 462	DIN 1804	000000000	0000
M45	45.000 mm					68.000 mm	1.200 mm	8.000 mm	2.500 mm	5.000 mm	—	Not Rated	DIN 462	DIN 1804	000000000	0000
M48	48.000 mm					75.000 mm	1.200 mm	8.000 mm	2.500 mm	5.000 mm	—	Not Rated	DIN 462	DIN 1804	000000000	0000
M50	50.000 mm					75.000 mm	1.200 mm	8.000 mm	2.500 mm	5.000 mm	—	Not Rated	DIN 462	DIN 1804	000000000	0000