McMaster-Carr logo
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    110 Products

    EMI/RFI Shielding Gaskets

    These gaskets absorb electromagnetic interference (EMI) and radio frequency interference (RFI) to prevent inaccurate signals, flickering displays, and other electrical problems. They compress to fill gaps and complete a grounding path around doors and access panels.
    Sheets
    Image of Product. Front orientation. EMI/RFI Shielding Gaskets. Sheets, Urethane Foam.

    Urethane Foam

    Image of Product. Front orientation. EMI/RFI Shielding Gaskets. Sheets, Polyurethane Foam.

    Polyurethane Foam

    Image of Product. Front orientation. ZoomedIn view. EMI/RFI Shielding Gaskets. Sheets, Silicone Rubber.

    Silicone Rubber

    Sheets work well between two flat surfaces.
    Urethane Foam—Urethane foam gaskets block EMI and RFI in most applications. Gaskets are made with conductive silver wire.
    Polyurethane Foam—Polyurethane foam gaskets are covered with either a conductive nickel/copper braided fabric or conductive aluminum foil. A nonconductive adhesive holds them in place. To protect sensitive equipment, they block at least twice as much interference as urethane foam gaskets. Cut these gaskets to length with scissors.
    Silicone Rubber—Silicone rubber sheets are embedded with conductive nickel wire. They block the most interference of our shielding gaskets and also seal out moisture. One side is smooth; the other is rough to help adhesives stick. They meet AMS, ASTM, and military standards for materials.
    Adhesive Backing—Adhesive-back gaskets stick to flat surfaces.
    UL 94 HF-1—Gaskets that meet UL 94 HF-1 stop burning within two seconds if they catch on fire and won’t spread the fire by dripping.
    UL 94 V-0—Gaskets that meet UL 94 V-0 self-extinguish within 10 seconds if they catch fire and won’t spread the fire by dripping.
    Thk.
    Wd.
    Lg.
    Interference Reduction
    @ Freq.
    Backing
    Type
    Temp. Range,
    ° F
    Color
    For Use
    Outdoors
    Flammability
    Rating
    Specs. Met
    Each
    Urethane Foam
    0.06"6"12"95 dB @ 1 GHzPlain-40 to 158GrayNoUL 94 V-0
    6021T111000000
    0.118"6"12"95 dB @ 1 GHzPlain-40 to 158GrayNoUL 94 V-0
    6021T13100000
     
    Polyurethane Foam
    0.02"0.157"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N1600000
    0.04"3/16"96"105 dB @ 1 GHzAdhesive-40 to 158GrayYesUL 94 V-0
    6180T1700000
    0.04"0.2"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N1300000
    0.04"13/32"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N2600000
    0.04"0.6"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N2700000
    0.05"0.09"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N4800000
    0.05"1"10"60 dB @ 1 GHzAdhesive-40 to 158GrayYesUL 94 HF-1
    6180T4400000
    0.051"0.157"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N4900000
    0.051"0.394"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N5100000
    0.06"0.1"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N1200000
    0.06"1/8"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N2300000
    0.08"0.1"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N4300000
    0.08"0.16"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N4400000
    0.08"0.2"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N4500000
    0.08"1/2"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N4600000
    0.08"3/4"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N4700000
    0.08"1"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N4200000
    0.095"7/32"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N2200000
    0.12"5/32"24"105 dB @ 1 GHzAdhesive-40 to 158GrayYesUL 94 V-0
    6180T1600000
    0.12"5/32"96"105 dB @ 1 GHzAdhesive-40 to 158GrayYesUL 94 V-0
    6180T1900000
    1/8"1/4"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N1800000
    0.14"1/4"24"105 dB @ 1 GHzAdhesive-40 to 158GrayYesUL 94 V-0
    6180T1500000
    0.14"1/4"96"105 dB @ 1 GHzAdhesive-40 to 158GrayYesUL 94 V-0
    6180T1800000
    0.16"11/32"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N1900000
    3/16"3/8"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N3900000
    3/16"3/4"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N4100000
    0.2"0.2"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N2800000
    1/4"1/4"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N2900000
    1/4"3/8"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N3100000
    1/4"1/2"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N3200000
    1/4"0.6"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N3300000
    3/8"3/8"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N2100000
    3/8"1/2"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N3400000
    1/2"1/2"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N3500000
    1/2"3/4"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N3600000
    0.67"0.67"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N3700000
    0.787"0.787"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N3800000
     
    Silicone Rubber
    1/32"3"36"125 dBA @ 1 GHzPlain-85 to 390GrayYesASTM D2000 Type G Class E, Fed. Spec. A-A-59588, SAE AMS33015831T2100000
    1/32"6"36"125 dBA @ 1 GHzPlain-85 to 390GrayYesASTM D2000 Type G Class E, Fed. Spec. A-A-59588, SAE AMS33015831T3100000
    1/32"9"36"125 dBA @ 1 GHzPlain-85 to 390GrayYesASTM D2000 Type G Class E, Fed. Spec. A-A-59588, SAE AMS33015831T41000000
    1/16"3"36"125 dBA @ 1 GHzPlain-85 to 390GrayYesASTM D2000 Type G Class E, Fed. Spec. A-A-59588, SAE AMS33015831T2200000
    1/16"6"36"125 dBA @ 1 GHzPlain-85 to 390GrayYesASTM D2000 Type G Class E, Fed. Spec. A-A-59588, SAE AMS33015831T32000000
    1/16"9"36"125 dBA @ 1 GHzPlain-85 to 390GrayYesASTM D2000 Type G Class E, Fed. Spec. A-A-59588, SAE AMS33015831T42000000
    1/8"3"36"125 dBA @ 1 GHzPlain-85 to 390GrayYesASTM D2000 Type G Class E, Fed. Spec. A-A-59588, SAE AMS33015831T24000000
    1/8"6"36"125 dBA @ 1 GHzPlain-85 to 390GrayYesASTM D2000 Type G Class E, Fed. Spec. A-A-59588, SAE AMS33015831T34000000
    1/8"9"36"125 dBA @ 1 GHzPlain-85 to 390GrayYesASTM D2000 Type G Class E, Fed. Spec. A-A-59588, SAE AMS33015831T44000000
    1/4"3"36"125 dBA @ 1 GHzPlain-85 to 390GrayYesASTM D2000 Type G Class E, Fed. Spec. A-A-59588, SAE AMS33015831T26000000
    1/4"6"36"125 dBA @ 1 GHzPlain-85 to 390GrayYesASTM D2000 Type G Class E, Fed. Spec. A-A-59588, SAE AMS33015831T36000000
     
    Half Round
    Image of Product. Front orientation. EMI/RFI Shielding Gaskets. Half Round.
    Half-round gaskets work well in grooves. Use a gasket slightly thicker than the depth of the groove; it will compress to fill the gap.
    Polyurethane Foam—Polyurethane foam gaskets are covered with either a conductive nickel/copper braided fabric or conductive aluminum foil. A nonconductive adhesive holds them in place. To protect sensitive equipment, they block at least twice as much interference as urethane foam gaskets. Cut these gaskets to length with scissors.
    Adhesive Backing—Adhesive-back gaskets stick to flat surfaces.
    UL 94 V-0—Gaskets that meet UL 94 V-0 self-extinguish within 10 seconds if they catch fire and won’t spread the fire by dripping.
    Thk.
    Wd.
    Lg.
    Interference Reduction
    @ Freq.
    Backing
    Type
    Temp. Range,
    ° F
    Color
    For Use
    Outdoors
    Flammability
    Rating
    Each
    Polyurethane Foam
    0.04"0.15"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N11000000
    0.05"1/4"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N1500000
    0.06"1/8"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N5200000
    0.06"1/4"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N5300000
    0.07"1/8"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N1400000
    0.08"0.08"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N5400000
    0.08"0.16"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N5500000
    0.08"0.394"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N5600000
    0.09"0.09"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N5700000
    0.09"0.15"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N5800000
    0.1"0.3"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N5900000
    0.11"0.18"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N600000
    1/8"3/16"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N6100000
    1/8"1/4"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N2500000
    0.14"1/4"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N6200000
    0.15"1/4"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N6300000
    0.16"1/4"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N6400000
    0.18"0.4"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N6500000
    0.195"0.26"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N6600000
    0.236"0.236"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N6700000
    1/4"3/8"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N2400000
    0.295"0.355"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N6800000
    0.315"0.63"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N6900000
    3/8"1/2"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N7100000
    0.43"1/2"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N7200000
    9/16"0.709"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N7300000
    0.67"0.67"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N7400000
     
    P-Shape
    Image of Product. Front orientation. EMI/RFI Shielding Gaskets. P-Shape.
    P-shaped gaskets fit around doors and corners. Attach them with the nonconductive adhesive or add bolts or screws through the flange for extra security.
    Polyurethane Foam—Polyurethane foam gaskets are covered with either a conductive nickel/copper braided fabric or conductive aluminum foil. A nonconductive adhesive holds them in place. To protect sensitive equipment, they block at least twice as much interference as urethane foam gaskets. Cut these gaskets to length with scissors.
    Adhesive Backing—Adhesive-back gaskets stick to flat surfaces.
    UL 94 V-0—Gaskets that meet UL 94 V-0 self-extinguish within 10 seconds if they catch fire and won’t spread the fire by dripping.
    Thk.
    Wd.
    Lg.
    Interference Reduction
    @ Freq.
    Backing
    Type
    Temp. Range,
    ° F
    Color
    For Use
    Outdoors
    Flammability
    Rating
    Each
    Polyurethane Foam
    0.2"13/32"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    4046N17000000
     
    Bulb Tubes
    Image of Product. Front orientation. EMI/RFI Shielding Gaskets. Bulb Tubes.
    Beryllium Copper—Beryllium copper gaskets withstand repeated compression and decompression over time, so they’re often used with doors that regularly open and close. They’re also known as fingerstock gaskets.
    Clip On—Install clip-on gaskets onto surfaces such as circuit board edges or enclosure door frames.
    Thk.
    Wd.
    Lg.
    Wall
    Thk.
    Finger
    Thk.
    No. of
    Fingers
    Interference
    Reduction @ Freq.
    Backing
    Type
    Mount
    Type
    Hardness
    For Use
    Outdoors
    Each
    Beryllium Copper
    1/4"0.077"16"0.004"0.06"29Not RatedPlainClip OnRockwell B105No6071N11000000
     
    Triangular Tubes
    Image of Product. Front orientation. EMI/RFI Shielding Gaskets. Triangular Tubes.
    Beryllium Copper—Beryllium copper gaskets withstand repeated compression and decompression over time, so they’re often used with doors that regularly open and close. They’re also known as fingerstock gaskets.
    Adhesive Backing—Adhesive-back gaskets stick to flat surfaces.
    Thk.
    Wd.
    Lg.
    Wall
    Thk.
    No. of
    Fingers
    Interference
    Reduction @ Freq.
    Backing
    Type
    Temp. Range,
    ° F
    Hardness
    For Use
    Outdoors
    Each
    Beryllium Copper
    0.11"0.32"16"0.003"86Not RatedAdhesive-67 to 250Rockwell B105No6071N12000000
    0.13"0.37"16"0.003"64Not RatedAdhesive-67 to 250Rockwell B105No6071N1300000
    0.14"0.38"16"0.004"43Not RatedAdhesive-67 to 250Rockwell B105No6071N1400000
    0.22"0.6"16"0.005"43Not RatedAdhesive-67 to 250Rockwell B105No6071N1500000
    0.32"0.78"16"0.004"43Not RatedAdhesive-67 to 250Rockwell B105No6071N1600000
     

    EMI/RFI Shielding Gaskets for Data Connectors

    Fit these gaskets over connectors that plug in to your enclosure to absorb interference and prevent signal problems. They block electromagnetic interference (EMI) and radio frequency interference (RFI), which cause flickering displays and inaccurate readings.
    Panel-Mount Mil. Spec. Connector
    Image of Product. Front orientation. EMI/RFI Shielding Gaskets. EMI/RFI Shielding Gaskets for Data Connectors, Panel-Mount Mil. Spec. Connector.
    Silicone Rubber—Silicone rubber gaskets are good for high temperature and wet environments because they seal out moisture. Most are sized to fit specific mil. spec. connector shell sizes.
    Interference Reduction @ Frequency—Interference reduction at frequency, also known as attenuation, describes how much EMI and RFI is blocked. These gaskets block most interference; use them for general purpose shielding as well as protecting sensitive or precision components.
    Mounting
    Holes
    For Connector
    Shell Size
    ID
    Thk.
    Wd.
    Lg.
    Interference Reduction
    @ Freq.
    Backing
    Type
    Temp. Range,
    ° F
    Color
    For Use
    Outdoors
    Dia.
    No
    of.
    Mil. Spec.
    Each
    Silicone Rubber
    7/16"1/32"11/16"11/16"100 dB @ 1 GHzPlain-65 to 300BeigeYes0.14"4MIL-DTL-835284201N55000000
    7/16"1/32"13/16"13/16"100 dB @ 1 GHzPlain-65 to 300BeigeYes0.14"4MIL-DTL-835284201N5400000
    63/8"1/32"3/4"3/4"100 dB @ 1 GHzPlain-65 to 300BeigeYes0.14"4MIL-DTL-835284201N1600000
    81/2"1/32"7/8"7/8"100 dB @ 1 GHzPlain-65 to 300BeigeYes0.16"4MIL-DTL-835284201N1900000
    89/16"1/32"13/16"13/16"100 dB @ 1 GHzPlain-65 to 300BeigeYes0.13"4MIL-DTL-835284201N1800000
    85/8"1/32"27/32"27/32"100 dB @ 1 GHzPlain-65 to 300BeigeYes0.14"4MIL-DTL-835284201N1700000
    1011/16"1/32"15/16"15/16"100 dB @ 1 GHzPlain-65 to 300BeigeYes0.13"4MIL-DTL-835284201N2200000
    11, 127/8"1/32"1 1/16"1 1/16"100 dB @ 1 GHzPlain-65 to 300BeigeYes0.14"4MIL-DTL-835284201N2400000
    12, 12S, 12SL3/4"1/32"1 3/32"1 3/32"100 dB @ 1 GHzPlain-65 to 300BeigeYes0.14"4MIL-DTL-835284201N2500000
    13, 141"1/32"1 5/32"1 5/32"100 dB @ 1 GHzPlain-65 to 300BeigeYes0.14"4MIL-DTL-835284201N2600000
    1415/16"1/32"1 1/8"1 1/8"100 dB @ 1 GHzPlain-65 to 300BeigeYes0.13"4MIL-DTL-835284201N2700000
    15, 161 1/8"1/32"1 1/4"1 1/4"100 dB @ 1 GHzPlain-65 to 300BeigeYes0.16"4MIL-DTL-835284201N2900000
    161 1/16"1/32"1 1/4"1 1/4"100 dB @ 1 GHzPlain-65 to 300BeigeYes0.13"4MIL-DTL-835284201N3100000
    17, 181 1/4"1/32"1 11/32"1 11/32"100 dB @ 1 GHzPlain-65 to 300BeigeYes0.16"4MIL-DTL-835284201N3300000
    18, 18S1 1/8"1/32"1 3/8"1 3/8"100 dB @ 1 GHzPlain-65 to 300BeigeYes0.16"4MIL-DTL-835284201N3500000
    181 3/16"1/32"1 11/32"1 11/32"100 dB @ 1 GHzPlain-65 to 300BeigeYes0.13"4MIL-DTL-835284201N3400000
    19, 201 3/8"1/32"1 1/2"1 1/2"100 dB @ 1 GHzPlain-65 to 300BeigeYes0.14"4MIL-DTL-835284201N3600000
    21, 221 1/2"1/32"1 5/8"1 5/8"100 dB @ 1 GHzPlain-65 to 300BeigeYes0.14"4MIL-DTL-835284201N3900000
    221 7/16"1/32"1 9/16"1 9/16"100 dB @ 1 GHzPlain-65 to 300BeigeYes0.13"4MIL-DTL-835284201N4100000
    23, 241 5/8"1/32"1 3/4"1 3/4"100 dB @ 1 GHzPlain-65 to 300BeigeYes0.17"4MIL-DTL-835284201N4300000
    241 1/2"1/32"1 3/4"1 3/4"100 dB @ 1 GHzPlain-65 to 300BeigeYes0.2"4MIL-DTL-835284201N4500000
    251 3/4"1/32"1 7/8"1 7/8"100 dB @ 1 GHzPlain-65 to 300BeigeYes0.17"4MIL-DTL-835284201N4600000
    362 1/4"1/32"2 1/2"2 1/2"100 dB @ 1 GHzPlain-65 to 300BeigeYes0.22"4MIL-DTL-835284201N4900000
    402 1/2"1/32"2 3/4"2 3/4"100 dB @ 1 GHzPlain-65 to 300BeigeYes0.22"4MIL-DTL-835284201N5100000
    442 25/32"1/32"3"3"100 dB @ 1 GHzPlain-65 to 300BeigeYes0.22"4MIL-DTL-835284201N5200000
    483 1/32"1/32"3 1/4"3 1/4"100 dB @ 1 GHzPlain-65 to 300BeigeYes0.22"4MIL-DTL-835284201N5300000
     
    back to top