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    74 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.
    Stainless SteelAbout Stainless Steel
    Image of Product. Front orientation. Washers. Mil. Spec. Washers.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these washers resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.
    Black-Oxide 18-8 Stainless Steel—Typically chosen for their appearance, these washers have a dark, matte coating to create a finished look. They resist rust in wet and outdoor environments, but won't hold up to harsh chemicals as well as 316 stainless steel.
    Material Certificate—Washers include a report with a traceable lot number.
    For Screw
    Size
    ID
    OD
    Thk.
    Mil. Spec.
    Specs. Met
    Certificate Type
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    No. 1
    0.078"0.188"0.016" to 0.025"MS15795-801, NASM1579550098019A395000000
    No. 2
    0.094"0.250"0.016" to 0.025"MS15795-802, NASM15795ASME B18.21.1Material Certificate
    50098019A30000000
    No. 4
    0.125"0.250"0.017" to 0.028"MS15795-803, NASM15795Material Certificate
    50098019A30900000
    No. 4
    0.125"0.312"0.025" to 0.040"MS15795-804, NASM15795ASME B18.21.1Material Certificate
    50098019A31000000
    No. 6
    0.156"0.312"0.027" to 0.048"MS15795-805, NASM1579525098019A31400000
    No. 6
    0.156"0.375"0.036" to 0.065"MS15795-806, NASM15795ASME B18.21.1Material Certificate
    25098019A31500000
    No. 8
    0.188"0.375"0.036" to 0.065"MS15795-807, NASM15795Material Certificate
    25098019A32500000
    No. 8
    0.188"0.438"0.036" to 0.065"MS15795-841, NASM15795ASME B18.21.1Material Certificate
    12598019A32600000
    No. 10
    0.219"0.438"0.036" to 0.065"MS15795-808, NASM15795Material Certificate
    25098019A33000000
    No. 10
    0.219"0.500"0.036" to 0.065"MS15795-842, NASM15795ASME B18.21.1Material Certificate
    10098019A33300000
    No. 12
    0.250"0.562"0.051" to 0.080"MS15795-809, NASM15795ASME B18.21.1Material Certificate
    10098019A33500000
    1/4"
    0.281"0.625"0.051" to 0.080"MS15795-810, NASM15795ASME B18.21.1Material Certificate
    5098019A35500000
    1/4"
    0.312"0.734"0.051" to 0.080"MS15795-811, NASM15795ASME B18.21.1Material Certificate
    2598019A36000000
    5/16"
    0.344"0.688"0.051" to 0.080"MS15795-812, NASM15795ASME B18.21.1Material Certificate
    2598019A3850000
    5/16"
    0.375"0.875"0.064" to 0.104"MS15795-813, NASM15795Material Certificate
    2598019A39000000
    3/8"
    0.406"0.812"0.051" to 0.080"MS15795-814, NASM15795ASME B18.21.1Material Certificate
    5098019A39900000
    3/8"
    0.438"1.000"0.064" to 0.104"MS15795-815, NASM15795ASME B18.21.1Material Certificate
    1098019A5000000
    7/16"
    0.469"0.922"0.051" to 0.080"MS15795-816, NASM15795ASME B18.21.12598019A50200000
    7/16"
    0.500"1.250"0.064" to 0.104"MS15795-817, NASM15795ASME B18.21.11098019A50500000
    1/2"
    0.531"1.062"0.074" to 0.121"MS15795-818, NASM15795ASME B18.21.1Material Certificate
    1098019A50900000
    1/2"
    0.562"1.375"0.086" to 0.132"MS15795-819, NASM15795ASME B18.21.1Material Certificate
    1098019A51000000
    5/8"
    0.656"1.312"0.074" to 0.121"MS15795-820, NASM15795ASME B18.21.1Material Certificate
    1098019A51400000
    5/8"
    0.688"1.750"0.108" to 0.160"MS15795-821, NASM15795ASME B18.21.1598019A51500000
    3/4"
    0.812"1.469"0.108" to 0.160"MS15795-822, NASM15795ASME B18.21.1Material Certificate
    598019A51900000
    3/4"
    0.812"2.000"0.122" to 0.177"MS15795-823, NASM15795ASME B18.21.1Material Certificate
    598019A52000000
    7/8"
    0.938"1.750"0.108" to 0.160"MS15795-824, NASM15795ASME B18.21.1Material Certificate
    598019A52400000
    7/8"
    0.938"2.250"0.136" to 0.192"MS15795-825, NASM15795ASME B18.21.1198019A5250000
    1"
    1.062"2.000"0.108" to 0.160"MS15795-826, NASM15795ASME B18.21.1198019A5290000
    1"
    1.062"2.500"0.136" to 0.192"MS15795-827, NASM15795ASME B18.21.1198019A5300000
     
    Black-Oxide 18-8 Stainless Steel
    No. 1
    0.078"0.188"0.016" to 0.025"MS15795-801B, NASM1579510090618A11100000
    No. 2
    0.094"0.218"0.018" to 0.022"MS15795-844B, NASM1579510090618A11300000
    No. 2
    0.094"0.250"0.016" to 0.025"MS15795-802B, NASM15795ASME B18.21.110090618A11200000
    No. 4
    0.125"0.250"0.017" to 0.028"MS15795-803B, NASM15795Material Certificate
    10090618A2000000
    No. 4
    0.125"0.312"0.025" to 0.040"MS15795-804B, NASM15795ASME B18.21.110090618A11400000
    No. 6
    0.156"0.312"0.027" to 0.048"MS15795-805B, NASM1579510090618A3000000
    No. 6
    0.156"0.375"0.036" to 0.065"MS15795-806B, NASM15795ASME B18.21.110090618A11500000
    No. 6
    0.172"0.281"0.029" to 0.039"MS15795-845B, NASM1579510090618A11600000
    No. 6
    0.172"0.312"0.029" to 0.039"MS15795-856B, NASM1579510090618A11700000
    No. 8
    0.188"0.375"0.036" to 0.065"MS15795-807B, NASM1579510090618A40000000
    No. 8
    0.188"0.438"0.036" to 0.065"MS15795-841B, NASM15795ASME B18.21.110090618A11800000
    No. 10
    0.203"0.375"0.019" to 0.021"MS15795-846B, NASM15795Material Certificate
    10090618A11900000
    No. 10
    0.203"0.562"0.029" to 0.035"MS15795-847B, NASM1579510090618A12200000
    No. 10
    0.203"0.562"0.057" to 0.069"MS15795-848B, NASM15795Material Certificate
    5090618A12300000
    No. 10
    0.203"0.625"0.035" to 0.045"MS15795-849B, NASM15795Material Certificate
    5090618A1240000
    No. 10
    0.203"0.734"0.025" to 0.045"MS15795-857B, NASM157955090618A12500000
    No. 10
    0.203"1.062"0.017" to 0.023"MS15795-850B, NASM157951090618A12600000
    No. 10
    0.219"0.438"0.036" to 0.065"MS15795-808B, NASM1579510090618A50000000
    No. 10
    0.219"0.500"0.036" to 0.065"MS15795-842B, NASM15795ASME B18.21.110090618A12100000
    1/4"
    0.250"0.562"0.051" to 0.080"MS15795-809B, NASM15795Material Certificate
    10090618A12900000
    1/4"
    0.250"0.688"0.065" to 0.075"MS15795-851B, NASM157952590618A13200000
    1/4"
    0.266"0.458"0.028" to 0.046"MS15795-858B, NASM15795Material Certificate
    10090618A12800000
    1/4"
    0.266"0.625"0.026" to 0.036"MS15795-852B, NASM15795Material Certificate
    10090618A13100000
    1/4"
    0.266"0.688"0.046" to 0.054"MS15795-853B, NASM157955090618A13300000
    1/4"
    0.281"0.625"0.051" to 0.080"MS15795-810B, NASM15795ASME B18.21.15090618A60000000
    1/4"
    0.296"0.438"0.029" to 0.035"MS15795-854B, NASM15795Material Certificate
    10090618A12700000
    5/16"
    0.312"0.734"0.051" to 0.080"MS15795-811B, NASM157955090618A13400000
    5/16"
    0.344"0.688"0.051" to 0.080"MS15795-812B, NASM15795ASME B18.21.15090618A70000000
    3/8"
    0.375"0.875"0.064" to 0.104"MS15795-813B, NASM157952590618A13500000
    3/8"
    0.406"0.812"0.051" to 0.080"MS15795-814B, NASM15795ASME B18.21.15090618A80000000
    7/16"
    0.438"1.000"0.064" to 0.104"MS15795-815B, NASM157952590618A13600000
    7/16"
    0.469"0.922"0.051" to 0.080"MS15795-816B, NASM15795ASME B18.21.12590618A13700000
    1/2"
    0.500"1.250"0.064" to 0.104"MS15795-817B, NASM15795Material Certificate
    1090618A13800000
    1/2"
    0.531"1.062"0.074" to 0.121"MS15795-818B, NASM15795ASME B18.21.11090618A90000000
    1/2"
    0.531"1.250"0.090" to 0.112"MS15795-855B, NASM157951090618A13900000
    1/2"
    0.562"1.375"0.086" to 0.132"MS15795-819B, NASM15795ASME B18.21.1590618A14100000
    9/16"
    0.594"1.469"0.090" to 0.112"MS15795-843B, NASM15795590618A14200000
    5/8"
    0.656"1.312"0.074" to 0.121"MS15795-820B, NASM15795ASME B18.21.1590618A14300000
    3/4"
    0.812"1.469"0.108" to 0.160"MS15795-822B, NASM15795ASME B18.21.1590618A14400000
    3/4"
    0.812"2.000"0.122" to 0.177"MS15795-823B, NASM15795ASME B18.21.1590618A14500000
    7/8"
    0.938"1.750"0.108" to 0.160"MS15795-824B, NASM15795ASME B18.21.1590618A14600000
    7/8"
    0.938"2.250"0.136" to 0.192"MS15795-825B, NASM15795ASME B18.21.1190618A1470000
    1"
    1.062"2.000"0.108" to 0.160"MS15795-826B, NASM15795ASME B18.21.1190618A1480000
    1"
    1.062"2.500"0.136" to 0.192"MS15795-827B, NASM15795ASME B18.21.1190618A1490000
    1 1/8"
    1.250"2.750"0.136" to 0.192"MS15795-828B, NASM15795ASME B18.21.1190618A15100000
     
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