EMI & Environmental Connector-Seal: Back-Mount

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Spira’s Back-Mount EMI & Environmental Connector-Seal gaskets are designed to provide an EMI & Environmental seal in flange-mounted connectors for the life of a system. They provide superior shielding quality and an excellent and durable environmental seal.

Category:
MIL-C-38999MIL-C-38999
M83723MS27613ABCD
Dash No.Series I MS27656Series IIISeries II,
MIL-E-26482, MS27472,
MS27497
0180.5940.4480.8280.125
0280.5940.5100.8280.125
039*0.7190.6720.9580.125
0490.7190.4820.9380.125
0510*10*0.7190.6950.9540.125
0611110.8120.6011.0310.125
071212120.8120.7901.0310.125
0813130.9060.7191.1250.125
091414140.9060.8851.1250.125
1015150.9690.8761.2190.125
111616160.9691.0101.2340.125
1217171.0620.9941.3120.125
131818181.0621.0821.3280.125
1419191.1561.1121.4380.125
1520201.1561.1981.4530.125
1621211.2501.2301.5620.125
172222221.2501.3321.5620.125
1823231.3751.3491.6880.152
192424241.3751.4521.7030.152
2025251.5001.4671.8120.152
21281.5621.7102.0000.152
MS-3412, MIL-DTL 5015 Series IIMIL-C-28840ABCD
228*0.5940.5100.8750.125
2310*0.7190.6351.0000.125
2411*0.7500.7601.0230.125
2512*0.8120.7601.0940.125
2613*0.8430.8851.1380.125
2714*0.9060.8851.1880.125
2815*0.9681.0721.2580.125
2916*0.9691.0101.2810.125
3017*1.0151.1351.3830.125
3118*1.0621.1351.3750.125
3219*1.1401.3221.5080.125
3320*1.1561.2601.5000.125
3422*1.2501.3851.6250.125
3523*1.2811.5101.7180.125
3624*1.3751.5101.7500.152
3725*1.3921.6351.8180.152
3828*1.5621.7602.0000.152
3929*1.5681.8852.1380.152
4032*1.7502.0102.2500.172
4133*1.7342.0732.3280.172
4236*1.9382.2602.5000.172
4340*2.1882.5102.7500.172
4444*2.3752.7603.0000.172
4548*2.6253.0103.2500.172

* The ECS gaskets are designed for back mounting of the connectors. Shell sizes noted with an asterisk (*) can be used for both front or back mounting.

Note that the dash numbers and sizes are different for each type of Connector-Seal gasket: the Environmental Connector-Seal Standard-Mount (ECS), the Front-Mount Environmental Connector-Seal (FMECS) and the EMI-Only version (CS).

The EMI & Environmental Connector-Seal “ECS” gaskets are made by attaching a Spira-Shield O-Ring gasket to an environmental sealing frame. The frame consists of a stainless steel plate sealed on both sides with vulcanized silicone or fluorosilicone rubber elastomer. The metal plate eliminates cold flow of the environmental sealing elastomer and provides a very durable and reusable gasket.

The “ECS” EMI & Environmental Connector-Seal is designed primarily for back mounting. The shell sizes noted with an asterisk (*) can be used for both front and back mounting.

Materials

Frame: Corrosion resistant Stainless Steel, between silicone or fluorosilicone rubber elastomer.
Spiral: Spira-Shield Standard force tin/lead plated beryllium copper gasket is standard. Other spiral plating options are available.

Shielding Quality

Connector-Seal gaskets offer shielding quality from 116 to 152 dB. The level is dependent on contact surfaces and may vary depending on your specific application. Refer to our Shielding Quality charts for more complete performance data.

Plating

The standard spiral (“T”) is electroplated, 90% tin, 10% lead (edges unplated). Plating options can be specified by changing the prefix in the part number:

E: Edge tin/lead plating (includes edges) for high humidity or salt-fog environments
IW: RoHS compliant tin plating (Example: ECS-IW-21 /S)
EIW: RoHS compliant edge tin plating for high humidity or salt-fog

Frame

The default frame is stainless steel sealed on both sides by silicone or fluorosilicone rubber elastomer.

Elastomer

Elastomers are available in either silicone or fluorosilicone rubber.

Ordering Information

EMI & Environmental Connector-Seal gaskets are ordered by the piece. Not all configurations are stock items. Custom sizes are also available. Contact us for availability.

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