3M Connector Covers are made of an intrinsically conductive composite material with uniformly distributed fibers. This makes the covers free of carbon black particulate and better suited to clean situations.
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3M™ Circular Connector Covers 4270 Series Feature a unique conductive composite material. Noncorrosive and produce no visible corrosion. Connector Covers 4270 Series were designed to meet the requirements and intentions of MS90376 and MIL PRF 5501/31A or 32A.