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    59 Products

    Mil. Spec. Washers

    These washers are manufactured and tested to strict U.S. military standards for material and construction. They take the pressure off screws and nuts to protect mounting surfaces.
    Steel
    Image of Product. Front orientation. Washers. Mil. Spec. Washers.
    Low-Friction Cadmium-Plated Steel—The plating reduces friction between the washer, fastener, and mounting surface to prevent sticking when fastening and loosening. It also creates a barrier against rust that's comparable to zinc yellow-chromate plating.
    For Screw
    Size
    ID
    OD
    Thk.
    Mil.
    Spec.
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Low-Friction Cadmium-Plated Steel
    No. 1
    0.078"0.188"0.016" to 0.025"MS27183-110098032A41300000
    No. 2
    0.094"0.250"0.016" to 0.025"MS27183-2ASME B18.21.110098032A41700000
    No. 3
    0.125"0.250"0.017" to 0.028"MS27183-310098032A4210000
    No. 4
    0.125"0.312"0.025" to 0.040"MS27183-4ASME B18.21.110098032A4250000
    No. 4
    0.125"0.375"0.025" to 0.040"MS27183-4410098032A4290000
    No. 5
    0.141"0.281"0.025" to 0.040"MS27183-4510098032A4320000
    No. 6
    0.156"0.250"0.013" to 0.020"MS27183-4310098032A4360000
    No. 6
    0.156"0.312"0.027" to 0.048"MS27183-510098032A4430000
    No. 6
    0.156"0.375"0.036" to 0.065"MS27183-6ASME B18.21.110098032A4470000
    No. 8
    0.188"0.375"0.036" to 0.065"MS27183-710098032A4510000
    No. 8
    0.188"0.438"0.036" to 0.065"MS27183-41ASME B18.21.110098032A45700000
    No. 8
    0.188"0.500"0.051" to 0.080"MS27183-4610098032A4620000
    No. 10
    0.219"0.365"0.025" to 0.040"MS27183-4710098032A4660000
    No. 10
    0.219"0.438"0.036" to 0.065"MS27183-810098032A4690000
    No. 10
    0.219"0.500"0.036" to 0.065"MS27183-42ASME B18.21.110098032A47200000
    No. 12
    0.250"0.562"0.025" to 0.040"MS27183-4910098032A47700000
    No. 12
    0.250"0.562"0.051" to 0.080"MS27183-9ASME B18.21.110098032A48100000
    No. 12
    0.250"0.625"0.025" to 0.040"MS27183-5010098032A48500000
    No. 12
    0.250"0.938"0.051" to 0.080"MS27183-482598032A4890000
    No. 12
    0.250"1.000"0.051" to 0.080"MS27183-512598032A4920000
    1/4"
    0.281"0.625"0.051" to 0.080"MS27183-10ASME B18.21.110098032A49500000
    1/4"
    0.281"0.734"0.051" to 0.080"MS27183-5210098032A49800000
    1/4"
    0.312"0.500"0.027" to 0.048"MS27183-545098032A33100000
    1/4"
    0.312"0.875"0.051" to 0.075"MS27183-532598032A33200000
    1/4"
    0.313"0.734"0.051" to 0.080"MS27183-11ASME B18.21.15098032A50100000
    5/16"
    0.344"0.688"0.051" to 0.080"MS27183-12ASME B18.21.110098032A50500000
    5/16"
    0.375"0.625"0.027" to 0.048"MS27183-565098032A3340000
    5/16"
    0.375"0.734"0.064" to 0.094"MS27183-555098032A33500000
    5/16"
    0.375"0.875"0.064" to 0.104"MS27183-13ASME B18.21.15098032A50900000
    3/8"
    0.406"0.812"0.051" to 0.080"MS27183-14ASME B18.21.15098032A51400000
    3/8"
    0.406"0.875"0.051" to 0.070"MS27183-575098032A34200000
    3/8"
    0.412"0.625"0.025" to 0.040"MS27183-585098032A3410000
    3/8"
    0.438"0.875"0.051" to 0.080"MS27183-605098032A34300000
    3/8"
    0.438"1.365"0.064" to 0.104"MS27183-591098032A34400000
    3/8"
    0.438"1.625"0.051" to 0.104"MS27183-611098032A34500000
    7/16"
    0.438"1.000"0.064" to 0.104"MS27183-155098032A33700000
    7/16"
    0.469"0.734"0.051" to 0.080"MS27183-625098032A33600000
    7/16"
    0.469"0.922"0.051" to 0.080"MS27183-16ASME B18.21.15098032A33800000
    7/16"
    0.500"1.250"0.064" to 0.104"MS27183-17ASME B18.21.15098032A33900000
    1/2"
    0.531"1.062"0.074" to 0.121"MS27183-18ASME B18.21.12598032A34600000
    1/2"
    0.562"1.375"0.086" to 0.132"MS27183-19ASME B18.21.11098032A34700000
    9/16"
    0.594"1.156"0.074" to 0.121"MS27183-20ASME B18.21.12598032A34800000
    5/8"
    0.656"1.312"0.074" to 0.121"MS27183-21ASME B18.21.12598032A35100000
    5/8"
    0.656"2.125"0.080" to 0.115"MS27183-63598032A34900000
    5/8"
    0.688"1.750"0.108" to 0.160"MS27183-22ASME B18.21.11098032A35200000
    3/4"
    0.812"1.469"0.108" to 0.160"MS27183-23ASME B18.21.11098032A35300000
    3/4"
    0.812"2.000"0.122" to 0.177"MS27183-24ASME B18.21.1598032A35400000
    7/8"
    0.938"1.750"0.108" to 0.160"MS27183-25ASME B18.21.11098032A37100000
    7/8"
    0.938"2.250"0.136" to 0.192"MS27183-26ASME B18.21.1598032A35600000
    1"
    1.062"2.000"0.108" to 0.160"MS27183-27ASME B18.21.11098032A35700000
    1"
    1.062"2.500"0.136" to 0.192"MS27183-28ASME B18.21.1198032A3580000
    1 1/8"
    1.250"2.750"0.136" to 0.192"MS27183-29ASME B18.21.1198032A3590000
    1 1/4"
    1.375"3.000"0.136" to 0.192"MS27183-30ASME B18.21.1198032A3610000
    1 3/8"
    1.500"3.250"0.153" to 0.213"MS27183-31ASME B18.21.1198032A36200000
    1 1/2"
    1.625"3.500"0.153" to 0.213"MS27183-32ASME B18.21.1198032A3630000
    1 5/8"
    1.750"3.750"0.153" to 0.213"MS27183-33ASME B18.21.1198032A36400000
    1 3/4"
    1.875"4.000"0.153" to 0.213"MS27183-34ASME B18.21.1198032A36500000
    1 7/8"
    2.000"4.250"0.153" to 0.213"MS27183-35ASME B18.21.1198032A36600000
    2"
    2.125"4.500"0.153" to 0.213"MS27183-36ASME B18.21.1198032A36700000
     
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