Latch Holder Retention and UL94 V-0 Housing
The 7-1747072-4: In a vibration environment, this keeps the terminal from backing out.
It is RoHS3 compliant. No official replacement or second-source cross-reference is listed by the manufacturer.
Tin-Plated Contacts, 50V Rating, Wide Temperature Range
Tin is suitable for moderate mating cycle counts (typically 25-50 cycles) in non-corrosive environments — if your application requires frequent field reconnects or exposure to humidity, consider a gold-plated alternative.