McMaster-Carr logo
    System of Measurement
    System of Measurement
    Inch
    Metric
    For OD
    For OD
    0.02"
    0.034"
    3/64"
    0.053" to 0.12"
    1/16"
    1/16" to 1/8"
    5/64"
    0.079" to 0.15"
    3/32"
    0.1"
    7/64"
    0.111" to 0.177"
    1/8"
    1/8" to 3/16"
    9/64"
    5/32"
    11/64"
    3/16"
    3/16" to 1/4"
    0.205" to 0.273"
    7/32"
    0.22"
    0.223"
    15/64"
    0.235" to 0.302"
    0.244"
    0.245"
    1/4"
    1/4" to 5/16"
    1/4" to 1/2"
    9/32"
    0.288"
    0.295"
    19/64"
    0.298" to 0.365"
    5/16"
    5/16" to 3/8"
    0.32"
    0.327" to 0.394"
    0.338"
    0.34"
    11/32"
    0.355"
    0.356" to 0.422"
    23/64"
    0.36"
    0.362"
    0.368"
    3/8"
    3/8" to 7/16"
    3/8" to 7/8"
    3/8" to 1"
    0.385"
    0.385" to 0.451"
    25/64"
    13/32"
    0.409" to 0.485"
    27/64"
    0.427"
    7/16"
    0.443"
    29/64"
    0.456"
    0.46"
    0.468" to 0.545"
    15/32"
    0.48"
    31/64"
    0.487"
    0.487" to 0.568"
    0.495"
    1/2"
    1/2" to 9/16"
    0.512"
    0.513"
    33/64"
    0.518" to 0.605"
    17/32"
    0.535"
    35/64"
    0.559"
    9/16"
    3/5"
    0.607"
    0.613" to 0.693"
    0.615"
    5/8"
    5/8" to 11/16"
    0.643"
    21/32" to 1 3/8"
    0.663" to 0.761"
    43/64"
    0.679"
    0.687" to 0.785"
    11/16"
    0.695"
    45/64"
    0.72"
    0.73"
    0.74"
    0.74" to 0.849"
    3/4"
    3/4" to 13/16"
    0.753" to 0.868"
    13/16"
    0.835"
    27/32"
    0.85"
    0.852"
    7/8"
    7/8" to 15/16"
    7/8" to 1 3/8"
    7/8" to 2 1/4"
    0.893"
    0.901" to 1.027"
    0.933" to 1.083"
    15/16"
    61/64"
    31/32"
    0.973"
    63/64"
    0.992"
    1"
    1" to 1 1/16"
    1.005"
    1 1/32"
    1 1/32" to 2 5/32"
    1 3/64"
    1.053"
    1 1/16"
    1 1/16" to 1 1/8"
    1.085" to 1.358"
    1 1/8"
    1 1/8" to 1 3/16"
    1.143"
    1.169" to 1.437"
    1.173" to 1.298"
    1 3/16"
    1 3/16" to 1 1/4"
    1.231"
    1.244"
    1.249" to 1.402"
    1 1/4"
    1 1/4" to 1 5/16"
    1.261"
    1.282" to 1.445"
    1.303"
    1 5/16"
    1 3/8"
    1 3/8" to 1 7/16"
    1 7/16" to 2 15/16"
    1.463"
    1.478"
    1.498" to 1.62"
    1 1/2"
    1 1/2" to 1 9/16"
    1.548"
    1.568" to 1.688"
    1.604"
    1 5/8"
    1 5/8" to 1 11/16"
    1 21/32"
    1 11/16"
    1 11/16" to 2 3/8"
    1.688" to 1.818"
    1.718" to 1.888"
    1 3/4"
    1 3/4" to 1 13/16"
    1.781" to 1.938"
    1.837" to 2.013"
    1.841"
    1 7/8"
    1 7/8" to 1 15/16"
    1 29/32"
    1.953" to 2.085"
    2"
    2" to 2 1/16"
    2.063" to 2.377"
    2.074" to 2 1/4"
    2 1/8" to 2 3/16"
    2.235" to 2.401"
    2 1/4"
    2 1/4" to 2 5/16"
    2.313"
    2.333" to 2.54"
    2 3/8"
    2 3/8" to 2 7/16"
    2.395" to 2.688"
    2 1/2"
    2 1/2" to 2 9/16"
    2 1/2" to 3"
    2.579" to 2.728"
    2 5/8" to 2 11/16"
    2.656" to 2.926"
    2.685" to 2.947"
    2 3/4"
    2 3/4" to 2 13/16"
    2.787" to 2.918"
    2.792"
    2 7/8"
    2.912" to 3.175"
    3"
    3" to 3 1/16"
    3.02" to 3.3"
    3 1/8" to 3 3/16"
    3.2" to 3.492"
    3 1/4"
    3 1/4" to 3 5/16"
    3 5/16" to 4 9/16"
    3.41" to 3.54"
    3.411"
    3.48" to 3.66"
    3 1/2"
    3 1/2" to 3 9/16"
    3 5/8"
    3 5/8" to 3 11/16"
    3.71" to 3.84"
    3.86" to 4"
    3.94" to 4.07"
    4"
    4" to 4 1/16"
    4 1/8"
    4.29" to 4.54"
    4.37" to 4.62"
    4.412"
    4 1/2"
    4 3/4"
    4 3/4" to 4 13/16"
    4.92" to 5.1"
    5"
    5.21" to 5.37"
    5.49" to 5.67"
    5 1/2"
    5 9/16"
    5.92" to 6.1"
    6 3/16"
    6.33" to 6.49"
    6.53" to 6.63"
    6 5/8"
    7 5/16"
    8 1/2"
    8.67" to 8.73"
    10 5/8"
    12 3/4"
    15"
    16 1/4"
    18 1/2"
    21"
    23"
    5 to 6 mm
    6 to 7 mm
    9 to 10 mm
    10 to 11 mm
    11 to 12 mm
    12 to 13 mm
    13 to 15 mm
    14 to 16 mm
    18 to 20 mm
    20 to 22 mm
    24 to 26 mm
    For Pipe Material
    For Pipe Material
    Plastic
    Stainless
    Steel
    Steel
    Aluminum
    Brass
    Iron
    For ID
    For ID
    0.022"-0.079"
    0.025"-0.08"
    0.03"-0.083"
    1/32"-3/64"
    1/32"-3/32"
    1/32"-1/8"
    3/64"-1/16"
    3/64"-7/64"
    3/64"-13/64"
    0.05"-0.08"
    1/16"
    1/16"-5/64"
    1/16"-11/64"
    1/16"-13/64"
    0.07"-0.11"
    5/64"-1/16"
    5/64"-7/64"
    5/64"-1/8"
    5/64"-11/64"
    3/32"
    0.1"-0.15"
    7/64"-9/64"
    7/64"-5/32"
    0.116"-0.182"
    1/8"
    1/8"-1/2"
    0.14"-0.21"
    0.14"-0.275"
    9/64"-3/16"
    9/64"-15/64"
    9/64"-23/64"
    0.15"
    5/32"
    5/32"-13/64"
    0.16"-0.275"
    11/64"-15/64"
    3/16"
    3/16"-1/4"
    0.19"-0.3"
    0.19"-0.32"
    13/64"-9/32"
    13/64"-21/64"
    7/32"
    7/32"-19/64"
    0.22"-0.33"
    0.22"-0.37"
    0.236"-0.302"
    0.24"-0.295"
    1/4"
    1/4"-9/32"
    1/4"-7/16"
    17/64"-5/16"
    17/64"-23/64"
    17/64"-3/8"
    17/64"-27/64"
    0.27"-0.4"
    9/32"
    9/32"-23/64"
    9/32"-25/64"
    0.29"
    19/64"-21/64"
    0.299"-0.365"
    0.31"-0.33"
    5/16"
    0.325"-0.367"
    21/64"-7/16"
    21/64"-31/64"
    21/64"-1/2"
    0.33"-0.396"
    0.34"-0.45"
    11/32"
    11/32"-3/8"
    11/32"-13/32"
    11/32"-15/32"
    11/32"-1/2"
    23/64"-29/64"
    0.361"-0.418"
    0.361"-0.427"
    3/8"
    3/8"-27/64"
    0.39"
    25/64"
    25/64"-19/32"
    13/32"
    13/32"-19/32"
    0.419"-0.485"
    27/64"-29/64"
    27/64"-37/64"
    7/16"
    7/16"-35/64"
    0.44"
    29/64"-31/64"
    29/64"-37/64"
    29/64"-39/64"
    29/64"-43/64"
    0.46"-0.57"
    15/32"
    15/32"-17/32"
    0.471"-0.536"
    0.471"-0.547"
    31/64"-35/64"
    1/2"
    1/2"-37/64"
    1/2"-21/32"
    0.51"
    33/64"-19/32"
    33/64"-41/64"
    33/64"-45/64"
    17/32"
    17/32"-39/64"
    0.532"-0.608"
    35/64"-41/64"
    35/64"-3/4"
    0.55"-0.631"
    0.56"
    9/16"
    9/16"-5/8"
    9/16"-21/32"
    37/64"-11/16"
    37/64"-47/64"
    0.58"-0.667"
    0.59"-0.7"
    19/32"
    19/32"-45/64"
    39/64"
    39/64"-23/32"
    0.61"-0.7"
    5/8"
    5/8"-45/64"
    5/8"-23/32"
    0.64"-0.727"
    41/64"-23/32"
    41/64"-49/64"
    41/64"-25/32"
    41/64"-51/64"
    21/32"
    0.66"
    43/64"-23/32"
    43/64"-47/64"
    43/64"-49/64"
    43/64"-25/32"
    11/16"
    0.69"-0.788"
    0.71"-0.82"
    23/32"
    23/32"-53/64"
    23/32"-15/16"
    47/64"-53/64"
    47/64"-7/8"
    47/64"-59/64"
    0.74"-0.83"
    3/4"
    3/4"-0.848"
    3/4"-1"
    49/64"-57/64"
    49/64"-29/32"
    25/32"
    0.787"
    51/64"-59/64"
    51/64"-15/16"
    51/64"-31/32"
    51/64"-1"
    51/64"-1 1/64"
    0.802"-0.911"
    13/16"
    0.82"
    53/64"-31/32"
    53/64"-63/64"
    0.84"-0.95"
    27/32"
    27/32"-1 7/32"
    0.86"
    0.866"-0.975"
    7/8"
    7/8"-1"
    57/64"-31/32"
    29/32"
    29/32"-1 1/16"
    0.915"-1.04"
    59/64"-1"
    59/64"-1 3/64"
    15/16"
    61/64"-1 1/64"
    61/64"-1 3/64"
    61/64"-1 5/64"
    61/64"-1 3/32"
    0.96"-1.05"
    0.96"-1.07"
    0.964"-1.09"
    31/32"
    63/64"-1 3/64"
    0.99"-1.08"
    1"
    1"-1 1/8"
    1 1/32"
    1 1/32"-1 1/4"
    1.04"
    1 3/64"-1 11/64"
    1 3/64"-1 1/4"
    1 1/16"
    1 1/16"-1 3/16"
    1 1/16"-1 21/64"
    1 5/64"-1 13/64"
    1 5/64"-1 7/32"
    1 5/64"-1 21/64"
    1.09"-1.2"
    1 3/32"
    1.094"-1.215"
    1 7/64"-1 19/64"
    1 1/8"
    1 1/8"-1 7/32"
    1 9/64"-1 13/32"
    1 5/32"
    1 11/64"-1 19/64"
    1.175"-1.284"
    1 3/16"
    1 3/16"-1 7/16"
    1 3/16"-1 29/64"
    1.21"-1.3"
    1 7/32"
    1 7/32"-1 3/8"
    1.224"-1.355"
    1.23"-1.33"
    1 15/64"-1 27/64"
    1 15/64"-1 17/32"
    1 1/4"
    1 1/4"-1 5/16"
    1 17/64"-1 31/64"
    1.29"
    1 19/64"-1 27/64"
    1 19/64"-1 1/2"
    1.312"-1.465"
    1 5/16"
    1 5/16"-1 39/64"
    1 5/16"-1 5/8"
    1 21/64"-1 35/64"
    1 21/64"-1 9/16"
    1 21/64"-1 19/32"
    1.34"-1.45"
    1 11/32"
    1 11/32"-1 1/2"
    1 23/64"-1 9/16"
    1.36"-1.45"
    1 3/8"
    1 27/64"-1 35/64"
    1 27/64"-1 11/16"
    1 7/16"
    1.447"-1.6"
    1 29/64"-1 5/8"
    1.46"-1.55"
    1 15/32"
    1 15/32"-1 5/8"
    1 15/32"-1 3/4"
    1 15/32"-1 49/64"
    1 31/64"-1 3/4"
    1.49"-1.58"
    1 1/2"
    1 1/2"-1 37/64"
    1 1/2"-1 11/16"
    1 1/2"-1 51/64"
    1.513"-1.6"
    1 33/64"-1 23/32"
    1 17/32"-1 45/64"
    1 35/64"-1 43/64"
    1 35/64"-1 3/4"
    1.56"-1.682"
    1.59"-1.68"
    1.59"-1.7"
    1 19/32"-1 3/4"
    1 5/8"
    1 41/64"-1 61/64"
    1 21/32"-1 15/16"
    1 21/32"-1 31/32"
    1 43/64"-1 13/16"
    1.7"
    1 45/64"-1 29/32"
    1 23/32"-1 7/8"
    1 23/32"-1 59/64"
    1.74"-1.83"
    1 3/4"
    1 3/4"-1 13/16"
    1 3/4"-1.88"
    1.78"-1.95"
    1.781"-1.805"
    1 25/32"-2 5/64"
    1 51/64"-1 59/64"
    1 13/16"-2 1/64"
    1 53/64"-2 1/32"
    1.84"-1.93"
    1.84"-1.95"
    1.86"-1.99"
    1.865"-1.975"
    1 7/8"
    1 57/64"-2 3/16"
    1 57/64"-2 13/64"
    1.9"-2.076"
    1 29/32"-2 9/64"
    1 59/64"-2 3/64"
    1 59/64"-2 5/32"
    1 15/16"-2 5/32"
    1 31/32"
    1 31/32"-2 15/32"
    1.975"-2.132"
    1 63/64"-2 15/32"
    1.99"-2.08"
    2"
    2"-2 13/32"
    2 1/64"-2 13/32"
    2.035"-2.21"
    2 3/64"-2 11/64"
    2.067"-2.243"
    2.11"-2.2"
    2 1/8"
    2 9/64"-2 1/2"
    2 9/64"-2 33/64"
    2 5/32"-2 7/16"
    2 11/64"-2 19/64"
    2 11/64"-2 15/32"
    2 7/32"-2 1/4"
    2.23"-2.26"
    2 1/4"
    2.255"-2.43"
    2 19/64"-2 21/32"
    2.298"-2.464"
    2 5/16"-2 21/32"
    2 21/64"-2 5/8"
    2.34"-2.43"
    2.395"-2.602"
    2 27/64"-2 35/64"
    2 29/64"-2 1/2"
    2 29/64"-2 15/16"
    2 29/64"-2 61/64"
    2 15/32"-2 57/64"
    2 31/64"-2 7/8"
    2 1/2"
    2.5"-2 7/8"
    2.525"-2.7"
    2 35/64"-2 43/64"
    2.614"-2.79"
    2 5/8"
    2 43/64"-2 13/16"
    2 3/4"
    2.765"-2.94"
    2 51/64"-2 59/64"
    2.81"-2.88"
    2.849"-2.98"
    2 61/64"-3 17/32"
    2.975"-3.103"
    3"
    3"-3.375"
    3"-3 15/32"
    3 1/64"-3 17/32"
    3 3/64"-3 7/16"
    3.14"-3.28"
    3 17/64"-4 1/32"
    3.27"-3.562"
    3 9/32"-4 3/64"
    3 19/64"-3 15/16"
    3.325"-3.457"
    3 11/32"-3 15/16"
    3 3/8"
    3.47"-3.6"
    3 1/2"
    3.5"-3.875"
    3 33/64"-4 63/64"
    3.52"-3.67"
    3 35/64"-4 15/16"
    3 35/64"-5"
    3 19/32"-4 7/8"
    3.73"-3.87"
    3.75"-4.125"
    3.79"-3.92"
    4"
    4"-4.375"
    4.02"-4.14"
    4 3/64"-4 15/16"
    4.25"-4.625"
    4.27"-4.43"
    4 19/64"-5 9/64"
    4.34"-4.51"
    4.5"-4 7/8"
    4 3/4"
    4.75"-5"
    4 51/64"-5 47/64"
    4.99"-5.2"
    5"
    5"-5.375"
    5 3/64"-6 1/16"
    5.5"-5.875"
    6"
    6"-6.375"
    6.25"-6.5"
    6.4"-6.56"
    6.5"-6.875"
    7.97"-8.14"
    5mm
    6mm
    8mm
    10mm
    12mm
    13mm
    14mm
    15-16mm
    16mm
    16-18mm
    18mm
    19-20mm
    20mm
    21-22mm
    22mm
    23-24mm
    24mm
    25mm
    25-26mm
    26mm
    27-28mm
    29-30mm
    31-32mm
    32mm
    33-34mm
    34mm
    For Pipe Schedule
    For Pipe Schedule
    click to learn more about
    click to learn more about 10
    click to learn more about 40
    1040
    click to learn more about 80
    click to learn more about 160
    80160
    XXH
    DFARS (Defense Acquisition Regulations Supplement)
    DFARS (Defense Acquisition
    Regulations Supplement)
    click to learn more about
    Maximum Pressure
    Maximum Pressure
    4 psi @ 72° F
    30 psi @ 72° F
    35 psi @ 72° F
    40 psi @ 72° F
    50 psi @ 72° F
    60 psi @ 72° F
    70 psi @ 72° F
    90 psi @ 72° F
    100 psi @ 72° F
    110 psi @ 72° F
    120 psi @ 72° F
    125 psi @ 72° F
    130 psi @ 72° F
    140 psi @ 72° F
    150 psi @ 72° F
    160 psi @ 72° F
    165 psi @ 72° F
    175 psi @ 72° F
    185 psi @ 72° F
    190 psi @ 72° F
    200 psi @ 72° F
    225 psi @ 72° F
    230 psi @ 72° F
    235 psi @ 72° F
    240 psi @ 72° F
    250 psi @ 72° F
    270 psi @ 72° F
    290 psi @ 72° F
    300 psi @ 72° F
    310 psi @ 72° F
    350 psi @ 72° F
    400 psi @ 72° F
    450 psi @ 72° F
    500 psi @ 72° F
    550 psi @ 72° F
    600 psi @ 72° F
    650 psi @ 72° F
    700 psi @ 72° F
    725 psi @ 72° F
    750 psi @ 72° F
    800 psi @ 72° F
    900 psi @ 72° F
    1,000 psi @ 72° F
    1,080 psi @ 72° F
    1,160 psi @ 72° F
    1,200 psi @ 72° F
    1,230 psi @ 72° F
    1,300 psi @ 72° F
    1,400 psi @ 72° F
    1,450 psi @ 72° F
    1,500 psi @ 72° F
    1,600 psi @ 72° F
    1,700 psi @ 72° F
    1,800 psi @ 72° F
    1,900 psi @ 72° F
    2,000 psi @ 72° F
    2,030 psi @ 72° F
    2,100 psi @ 72° F
    2,170 psi @ 72° F
    2,200 psi @ 72° F
    2,300 psi @ 72° F
    2,400 psi @ 72° F
    2,500 psi @ 72° F
    2,600 psi @ 72° F
    2,700 psi @ 72° F
    2,900 psi @ 72° F
    3,000 psi @ 72° F
    3,100 psi @ 72° F
    3,200 psi @ 72° F
    3,300 psi @ 72° F
    3,500 psi @ 72° F
    3,600 psi @ 72° F
    3,800 psi @ 72° F
    3,900 psi @ 72° F
    4,000 psi @ 72° F
    4,100 psi @ 72° F
    4,200 psi @ 72° F
    4,300 psi @ 72° F
    4,400 psi @ 72° F
    4,500 psi @ 72° F
    4,600 psi @ 72° F
    4,700 psi @ 72° F
    4,800 psi @ 72° F
    4,900 psi @ 72° F
    5,000 psi @ 72° F
    5,100 psi @ 72° F
    5,200 psi @ 72° F
    5,300 psi @ 72° F
    5,400 psi @ 72° F
    5,500 psi @ 72° F
    5,600 psi @ 72° F
    5,800 psi @ 72° F
    6,000 psi @ 72° F
    6,100 psi @ 72° F
    6,200 psi @ 72° F
    6,400 psi @ 72° F
    6,600 psi @ 72° F
    6,800 psi @ 72° F
    6,900 psi @ 72° F
    7,000 psi @ 72° F
    7,100 psi @ 72° F
    7,200 psi @ 72° F
    7,300 psi @ 72° F
    7,500 psi @ 72° F
    7,600 psi @ 72° F
    7,700 psi @ 72° F
    8,000 psi @ 72° F
    9,000 psi @ 72° F
    9,100 psi @ 72° F
    9,700 psi @ 72° F
    10,000 psi @ 72° F
    11,600 psi @ 72° F
    15,000 psi @ 72° F
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