
MIL-DTL-83528 Type A
CHO-SEAL 1215 alternative. SSP2569-65 is a 65-durometer, silver-copper EMI shielding silicone. MIL-DTL-83528 Type A. QPL Listed.
SSP fabricates EMI connector gaskets from the EMI/RFI shielding silicones we produce at our Made in USA manufacturing facility.
Many of our elastomers are MIL-DTL-83528 QPL certified (MIL-G-83528) and part of the M83528 QPL from the U.S. DoD DLA.
As a vertically integrated manufacturer, we also have an in-house toolroom. Choose SSP instead of Parker Chomerics CHO-SEAL.
SSP makes EMI/RFI shielding silicones and fabricates EMI connector gaskets from the materials we produce and the tools we machine. Use SSP’s electrically conductive silicones instead of Parker Chomerics CHO-SEAL materials.
CHO-SEAL 1215 alternative. SSP2569-65 is a 65-durometer, silver-copper EMI shielding silicone. MIL-DTL-83528 Type A. QPL Listed.
CHO-SEAL 1285 alternative. SSP2368-65 is a 65-durometer silver-aluminum EMI shielding silicone. MIL-DTL-83528 Type B. QPL listed.
CHO-SEAL 1217 alternative. SSP2573-75 is a 75-durometer silver-copper EMI shielding fluorosilicone that meets MIL-DTL-83528 Type C. QPL listed.
CHO-SEAL 1287 and CHO-SEAL 1298 alternative. SSP2486-70 is a 70-durometer silver-aluminum EMI shielding fluorosilicone. MIL-DTL-83528 Type D. QPL listed.
CHO-SEAL 1212 alternative. SSP2571-85 is an 85-durometer silver-copper EMI silicone that meets MIL-DTL-83528 Type K. QPL listed.
SSP makes flange-mount EMI connector gaskets that are square shaped and come in M83528 part sizes. Depending on the EMI gasket quantities you need, SSP can use flash cutting or die cutting to produce them. Additional sizes available upon request.
MIL-DTL-83528 Part Number | Dimensions | Connector Shell Size | |||||||
A | B | C | D | ||||||
M83528/004×001 | .469 | 11.91 | .375 | 9.53 | .738 | 18.75 | .141 | 3.58 | 6 |
M83528/004X002 | .594 | 15.09 | .630 | 16.00 | .840 | 21.34 | .135 | 3.43 | 8 |
M83528/004X003 | .594 | 15.09 | .568 | 14.43 | .812 | 20.62 | .125 | 3.18 | 8 |
M83528/004X004 | .594 | 15.09 | .500 | 12.70 | .875 | 22.23 | .156 | 3.96 | 8 |
M83528/004X005 | .719 | 18.26 | .750 | 19.05 | .965 | 24.51 | .135 | 3.43 | 9,10 |
M83528/004X006 | .719 | 18.26 | .680 | 17.27 | .937 | 23.80 | .125 | 3.18 | 10 |
M83528/004X007 | .719 | 18.26 | .625 | 15.88 | 1.000 | 25.40 | .156 | 3.96 | 10S, SL |
M83528/004X008 | .812 | 20.62 | .875 | 22.23 | 1.060 | 26.92 | .141 | 3.58 | 11,12 |
M83528/004X009 | .813 | 20.65 | .750 | 22.10 | 1.094 | 27.79 | .141 | 3.58 | 12,12S,SL |
M83528/004X010 | .906 | 23.01 | 1.005 | 25.53 | 1.153 | 29.29 | .135 | 3.43 | 13,14 |
M83528/004X011 | .906 | 23.01 | .938 | 23.83 | 1.125 | 28.58 | .125 | 3.18 | 14 |
M83528/004X012 | .906 | 23.01 | .875 | 22.23 | 1.188 | 30.18 | .156 | 3.96 | 14,14S |
M83528/004X013 | .969 | 24.61 | 1.135 | 28.83 | 1.258 | 31.95 | .156 | 3.96 | 15,16 |
M83528/004X014 | .969 | 24.61 | 1.063 | 27.00 | 1.250 | 31.75 | .125 | 3.18 | 16 |
M83528/004X015 | .969 | 24.61 | 1.000 | 25.40 | 1.281 | 32.54 | .156 | 3.96 | 16,16S |
M83528/004X016 | 1.062 | 26.97 | 1.260 | 32.00 | 1.351 | 34.32 | .156 | 3.96 | 17,18 |
M83528/004X017 | 1.062 | 26.97 | 1.189 | 30.20 | 1.343 | 34.11 | .125 | 3.18 | 18 |
M83528/004X018 | 1.062 | 26.97 | 1.135 | 28.83 | 1.375 | 34.93 | .156 | 3.96 | 18,18S |
M83528/004X019 | 1.156 | 29.36 | 1.375 | 34.93 | 1.500 | 38.10 | .141 | 3.58 | 19,20 |
M83528/004X020 | 1.156 | 29.36 | 1.312 | 33.32 | 1.467 | 37.26 | .125 | 3.18 | 20 |
M83528/004X021 | 1.156 | 29.36 | 1.250 | 31.75 | 1.500 | 38.10 | .172 | 4.37 | 20 |
M83528/004X022 | 1.250 | 31.75 | 1.500 | 38.10 | 1.625 | 41.28 | .141 | 3.58 | 21,22 |
M83528/004X023 | 1.250 | 31.75 | 1.437 | 36.50 | 1.562 | 39.67 | .125 | 3.18 | 22 |
M83528/004X024 | 1.250 | 31.75 | 1.375 | 34.93 | 1.625 | 41.28 | .172 | 4.37 | 22 |
M83528/004X025 | 1.375 | 34.93 | 1.625 | 41.28 | 1.750 | 44.45 | .172 | 4.37 | 23,24 |
M83528/004X026 | 1.375 | 34.93 | 1.563 | 39.70 | 1.703 | 43.26 | .152 | 3.86 | 24 |
M83528/004X027 | 1.375 | 34.93 | 1.500 | 38.10 | 1.750 | 44.45 | .203 | 5.16 | 24 |
M83528/004X028 | 1.500 | 38.10 | 1.750 | 44.45 | 1.875 | 47.63 | .172 | 4.37 | 25 |
M83528/004X029 | 1.562 | 39.67 | 1.750 | 44.45 | 2.000 | 50.80 | .203 | 5.16 | 28 |
M83528/004X030 | 1.750 | 44.45 | 2.000 | 50.80 | 2.250 | 57.15 | .219 | 5.56 | 32 |
M83528/004X031 | 1.938 | 49.23 | 2.250 | 57.15 | 2.500 | 63.50 | .219 | 5.56 | 36 |
M83528/004X032 | 2.188 | 55.58 | 2.500 | 63.50 | 2.750 | 69.85 | .219 | 5.56 | 40 |
M83528/004X033 | 2.375 | 60.33 | 2.781 | 70.63 | 3.000 | 76.20 | .219 | 5.56 | 44 |
M83528/004X034 | 2.625 | 66.68 | 3.031 | 76.99 | 3.250 | 82.55 | .219 | 5.56 | 48 |
M83528/004X035 | .500 | 12.70 | .437 | 11.10 | .800 | 20.32 | .135 | 3.43 | |
M83528/004X036 | .500 | 12.70 | .437 | 11.10 | 687 | 17.45 | .135 | 3.43 |
An EMI connector gasket is designed to reduce or eliminate the transmission of electromagnetic interference (EMI) between connected devices, or through the connector itself.
These devices are used in environments where EMI can cause problems, such as in military, aerospace, telecommunications, medical devices, and other sensitive electronic systems. Specialty Silicone Products (SSP) makes EMI gaskets for these and other applications.
There are many product types including coaxial, D-subminiature (D-sub), circular, and more. They can be used for data transmission, power supply, and signal transfer. Here are some examples.
D-Sub Connector Gaskets: D-sub connectors are commonly used in industrial and computing applications. EMI gaskets for D-sub connectors include:
An EMI connector gasket is typically designed with metal or other conductive materials to provide shielding that blocks electromagnetic waves. This shielding helps prevent interference from both external sources and from the connector’s internal components.
Many products have grounding features that ensure a low-impedance path to ground. This helps dissipate any electromagnetic energy that might otherwise cause interference.
An EMI connector gasket may incorporate filters (such as capacitors or ferrites) that suppress high-frequency electronic noise. These filters are integrated into the device itself and provide additional protection against EMI.
Sealing reduces the likelihood of gaps where EMI could leak in or out. They are used in situation where maintaining signal integrity is critical, such as military communications, aerospace electronics, medical devices, industrial equipment, and high-speed data networks.
Specialty Silicone Products makes EMI gaskets that meet the requirements of MIL-DTL-83528, a U.S. military detail specification for elastomeric gasket materials that provide EMI shielding. Note that die-cut flange-mount products are square and come in many different sizes.