Description
257-606-NF-G6-25Q17AA-557P2 Quadrax Plug Connector — BOLTON SKU 62042.
About the 257-606-NF-G6-25Q17AA-557P2 Quadrax Plug
The 257-606-NF-G6-25Q17AA-557P2 Quadrax Plug Connector belongs to Glenair’s 257-606 quadrax connector series, built on a MIL-DTL-38999 Series III type circular interface. The G6 designator in the part number identifies the plug configuration of the series (the 00 designator being the wall-mount receptacle). Quadrax connectors house four-conductor concentric contact assemblies engineered for high-speed differential data transmission, allowing shielded high-speed pairs and conventional signal circuits to share a single rugged circular shell. The remaining part-number fields encode shell finish, shell size, insert arrangement and keying/contact options; BOLTON quotes the exact configuration as listed. Full series documentation from the manufacturer can be supplied with quotation on request.
Key specifications
| Series | Glenair 257-606 |
|---|---|
| Configuration | Plug (G6 designator) |
| Interface | MIL-DTL-38999 Series III type |
| Contact system | Quadrax (four-conductor differential contact assemblies) |
| Ordering number | 257-606-NF-G6-25Q17AA-557P2 |
Typical applications
Quadrax-equipped 38999-style plugs of this series terminate high-speed data links — such as Ethernet-class differential pairs — on aircraft, UAV and vetronics harnesses where signal integrity must survive vibration, moisture and EMI. This plug configuration mates to the corresponding panel receptacle of the same series and insert arrangement.
Supplied by BOLTON Technical Equipment Supplies against request for quotation. Add this item to your RFQ basket to request pricing, lead time and documentation requirements (e.g. CoC, datasheets or test reports where applicable).





















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