Conical Washers | McMaster-Carr

	System of Measurement System of Measurement

	ID ID

	OD OD

	For Screw Size For Screw Size

	Material Material

Stainless Steel

	Thickness Thickness

0.022" to 0.032"

0.023" to 0.027"

0.023" to 0.033"

0.025" to 0.031"

0.025" to 0.035"

0.029" to 0.033"

0.030" to 0.040"

0.033" to 0.037"

0.033" to 0.043"

0.034" to 0.044"

0.036" to 0.042"

0.043" to 0.053"

0.047" to 0.053"

0.048" to 0.052"

0.049" to 0.055"

0.050" to 0.060"

0.052" to 0.058"

0.059" to 0.065"

0.060" to 0.064"

0.070" to 0.076"

0.074" to 0.082"

0.075" to 0.081"

0.075" to 0.082"

0.091" to 0.099"

0.093" to 0.103"

0.095" to 0.101"

0.127" to 0.141"

0.130" to 0.140"

0.131" to 0.145"

0.146" to 0.162"

0.163" to 0.181"

0.182" to 0.202"

0.200" to 0.222"

0.219" to 0.243"

0.238" to 0.263"

	Washer Type Washer Type


Spring Lock	Beveled

Tab Lock

	For Shaft Diameter For Shaft Diameter

	Working Load Working Load

Less than 1,000 lbs.

1,000 to 9,999 lbs.

10,000 to 19,999 lbs.

20,000 to 29,999 lbs.

30,000 lbs. or greater

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

DFARS Specialty Metals
Compliant

	Flat Load Flat Load

Less than 1,000 lbs.

1,000 to 9,999 lbs.

10,000 to 19,999 lbs.

20,000 to 29,999 lbs.

30,000 lbs. or greater

	Overall Height Overall Height

	Finish Finish

Black Phosphate

	Height Height

	Specifications Met Specifications Met

	Deflection @ Working Load Deflection @ Working Load

Less than 0.01"

0.01" to 0.019"

0.02" to 0.029"

0.03" to 0.039"

0.04" or greater

Less than 0.5 mm

0.5 mm to 0.99 mm

1 mm to 1.49 mm

1.5 mm to 1.99 mm

2 mm or greater

	Compressed Height @ Working Load Compressed Height @ Working Load

	Hardness Hardness

	Trade Size Trade Size

	Serration Location Serration Location

	Industry Designation Industry Designation

	For Bolt Size For Bolt Size

	Maximum Temperature Maximum Temperature

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786 Products

Lock Washers

Metric Spring Lock Washers

The arched shape of these washers presses up against a bolt and down against a nut to prevent loosening from wear, vibration, or temperature changes.

Belleville Spring Lock Washers

Also known as conical washers, these have a slightly cupped shape that gives them spring-like flexibility to grip tighter than split and tooth lock washers.

Belleville Spring Lock Washers for Socket Head Screws

These washers have smaller outside diameters than standard spring lock washers to fit neatly under socket head cap screws.

Spring Lock Washers for Plastic Screws

Designed for use with plastic screws, these acetal washers are good electrical insulators. They are excellent for use under water and in rotating assemblies.

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.

Metric Tab Lock Washers

Bend the tab of these metric lock washers against the flats of a hex nut or bolt head to prevent the fastener and washer from turning and loosening due to vibration, wear, or changes in temperature.

Belleville Disc Springs

Belleville Disc Springs

Use these steel springs in noncorrosive environments.

Corrosion-Resistant Belleville Disc Springs

Made of stainless steel, these springs are more corrosion resistant than steel springs. Use them on shafts, bolts, and the ends of valves to maintain tension and separate components.

Extreme-Temperature Belleville Disc Springs

These springs withstand temperatures from -400° to 1100° F. All are 718 nickel, a high-strength, corrosion-resistant alloy that's also known as Inconel.

Belleville Disc Springs for Flange Bolts

Keep pipe flange connections sealed during demanding applications. When installed under flange bolt heads, these springs compensate for shock loads, vibration, and thermal expansion and contraction.

Belleville Disc Springs for Ball Bearings

Install these springs, also known as bearing preload washers, against ball bearings to reduce noise and unwanted movement along the shaft.

Mil. Spec. Belleville Disc Springs

These springs meet MIL-W-12133.

Faucet Washers

Faucet Washers

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The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)