What this cover fits
The 1-643067-3 is a 13-position strain relief cover for the MTA-156 series, used to cap the connector and protect the wire exit from pull forces. Closed-end design — the cover seals the back of the housing, keeping debris out of the contact cavity.
Series fit and sourcing
The 1-643067-3 mates with any 13-position MTA-156 header or receptacle — the strain relief snaps onto the housing after termination.
