NAS Washers | McMaster-Carr

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3-A Sanitary Certified

	System of Measurement System of Measurement

	For Screw Size For Screw Size

	Material Material

Stainless
Steel

	Finish Finish

Cadmium Yellow-Chromate
Plated

Yellow-Chromate Plated

	Washer Type Washer Type

	OD OD

	ID ID

	Thickness Thickness

0.010" to 0.015"

0.013" to 0.019"

0.014" to 0.018"

0.015" to 0.017"

0.015" to 0.018"

0.015" to 0.019"

0.016" to 0.022"

0.016" to 0.025"

0.017" to 0.021"

0.017" to 0.023"

0.017" to 0.028"

0.018" to 0.022"

0.018" to 0.023"

0.019" to 0.021"

0.020" to 0.025"

0.021" to 0.041"

0.023" to 0.028"

0.025" to 0.040"

0.025" to 0.045"

0.026" to 0.036"

0.027" to 0.048"

0.028" to 0.034"

0.028" to 0.036"

0.028" to 0.046"

0.029" to 0.035"

0.029" to 0.039"

0.030" to 0.034"

0.031" to 0.033"

0.032" to 0.040"

0.035" to 0.045"

0.036" to 0.065"

0.037" to 0.045"

0.042" to 0.050"

0.046" to 0.054"

0.047" to 0.055"

0.051" to 0.080"

0.052" to 0.060"

0.053" to 0.073"

0.057" to 0.069"

0.057" to 0.075"

0.059" to 0.067"

0.059" to 0.071"

0.060" to 0.066"

0.062" to 0.064"

0.064" to 0.104"

0.065" to 0.075"

0.074" to 0.121"

0.082" to 0.098"

0.083" to 0.097"

0.084" to 0.104"

0.086" to 0.132"

0.090" to 0.112"

0.099" to 0.119"

0.108" to 0.160"

0.115" to 0.135"

0.122" to 0.177"

0.136" to 0.192"

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

DFARS Specialty Metals
COTS-Exempt

DFARS Specialty Metals
Compliant

	Hardness Hardness

Rockwell C40-50

	Color Color

	White

	Tooth Location Tooth Location


External	Internal

	Maximum Temperature Maximum Temperature

Less than 250° F

500° to 999° F

	Minimum Temperature Minimum Temperature

	Trade Size Trade Size

	Mount Type Mount Type

	Press Fit

	Flange Diameter (D) Flange Diameter (D)

	For Use With For Use With

	Shape Shape

	Round

	For Use Outdoors For Use Outdoors

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Washers

Mil. Spec. Washers

Choose these washers for their adherence to strict military standards for material and construction.

Mil. Spec. Plastic Washers

Choose these washers for their adherence to strict military standards for material and construction.

Mil. Spec. Chemical-Resistant Plastic Washers

Choose these washers for their adherence to strict military standards for material and construction.

Mil. Spec. External-Tooth Lock Washers

Choose these washers for their adherence to strict military standards for material and construction.

Mil. Spec. Internal-Tooth Lock Washers

Choose these washers for their adherence to strict military standards for material and construction.

Fabric Grommets

Fabric Grommets

Fabric Grommets

Press these grommets into a hole you've already cut. They strengthen and prevent holes from fraying in tarps, covers, and curtains. They also provide a way to run rope and cable through your material.

Reinforcing Fabric Grommets

Reinforcing Fabric Grommets

The extended neck on the washer of these grommets adds reinforcement so you can use them in thicker material such as woven fabrics. Press them into a hole you've already cut. They strengthen and prevent holes from fraying in tarps, covers, and curtains. They also provide a way to run rope and cable through your material.

Rolled-Rim Reinforcing Fabric Grommets

Rolled-Rim Reinforcing Fabric Grommets

A rolled rim provides added grip while the elongated neck and teeth on the washer, also known as a spur washer, add reinforcement and reduce rotation so you can use these grommets in thick materials such as canvas. Press the grommets into a hole you've already cut. They strengthen and prevent holes from fraying in tarps, covers, and curtains. They also provide a way to run rope and cable through your material.

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