Amphenol 88-56977x-xxx Connector Equivalent

88-56977x-xxx Connector & PC Tail Contact Equivalent

Milnec offers equivalents for Amphenol 88-56977x-xxx connectors in all shell sizes with matching PCB contacts. Milnec connectors are 100% compatible in form, fit, and function to the Amphenol counterparts. The connectors and contacts are built to the MIL-DTL-38999 Series III specification.

For new designs, Milnec offers a wide range of PCB contact lengths and sizes for use in standard TX00 (D38999/20), TX07 (D38999/24), and TX02 style receptacles, which are fully compatible will all MIL-DTL-38999 Series III stye connectors.


  • MIL-DTL-38999 Series III: Connector is 100% compatible in form, fit, and function to the mil-spec
  • Contact Material: Suitable copper alloy
  • Contact Finish: Gold plate per IAW ASTM B488-01, Type II, Code C, Class 1.25 (.000050 Min) over nickel IAW AMS QQ-N-290, Class 1, .000050-.000100 thick

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Popular Amphenol 88-56977x-xxx Configurations

Amphenol Part NumberContactsOrder Milnec Part Number
88-569771-35P6 x #22D PCB PinsTX02W9-35XN-125
88-569771-98P3 x #20 PCB PinsTX02W9-98XN-125
88-569772-35P13 x #22D PCB PinsTX02W11-35XN-125
88-569772-35S13 x #22D PCB SocketsTX02W11-35YN-125
88-569773-35I22 x #22D PCB PinsTX02W13-35XB-125
88-569774-35S37 x #22D PCB SocketsTX02W15-35YN-125
88-569775-35H55 x #22D PCB SocketsTX02W17-35YA-125
88-569775-35S55 x #22D PCB SocketsTX02W17-35YN-125
88-569776-35P66 x #22D PCB PinsTX02W19-35XN-125

How To Order Your Amphenol 88-56977x-xxx Equivalent with PCB Contacts

To quickly order your 88-56977x-xxx equivalent, you must first cross it to a Milnec part number. See our part builder for instruction on how to cross-reference your part.

88-56977x-xxx Drawing & Dimensions