NAS Washers | McMaster-Carr

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System of Measurement

Screw Size

Material

Phosphor Bronze

Stainless Steel

OD

Washer Type

ID

Thickness

0.010" to 0.015"

0.011" to 0.021"

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 0.025"

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"

Specifications Met

EPA Compliant 40 CFR 141

Federal Specification

NEBS GR-63-CORE

Certification

Military Specification

Army-Navy Specification

Military Specification

Passivation

Finish

Zinc Yellow-Chromate Plated

DFARS Specialty Metals

REACH

RoHS

Performance

Chemical Resistant

Corrosion Resistant

Electrically Insulating

High Temperature

Export Control Classification Number (ECCN)

Hardness

Rockwell C40 to Rockwell C50

Shape

Color

Overall Height

Tooth Location

Maximum Temperature

Less than 250° F

250° F to 299° F

500° F to 999° F

Minimum Temperature

-99° F to -50° F

Greater than 0° F

Environment

Certificate Type

Material Certificate with Traceable Lot Number

How can we improve?

756 Products

Washers

Mil. Spec. Washers

Mil. Spec. Washers

Adhere to U.S. military standards for material and construction

Mil. Spec. Plastic Washers

Mil. Spec. Plastic Washers

Meet U.S. military standards and are lightweight, nonconductive, and naturally rust resistant

Other Products

Lock Washers

Resist vibration to prevent fasteners from loosening

Grommets

Protect wire, cable, and cords from holes with sharp or rough edges

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