MS905778
Dimensions and configuration: In accordance with figure 1 and MIL-STD-348, 8NC socket contact interface.
Impedance: 50 ohms.
Frequency range: 500 MHz, maximum.
Voltage rating: 500 volts rms, maximum at 60 Hz. Dielectric withstanding voltage: 3,000 volts, rms.
Corrosion: In accordance with MIL-STD-202, method 101, test condition 8.
Finish: Center contact. The male pin shall be plated to a minimum gold thickness of 50 micro inches (1.27µm) in accordance with ASTM 8488, type II, code C, class 1.27, over 50 micro inches (1.27µm) minimum of nickel in accordance with SAE-AMS-QQ-N-290, class 1, measured anywhere along the mating surface, for all series. The socket contact shall be plated to a minimum of 50 micro inches (1.27
µm) of gold in accordance with ASTM 8488, type II, code C, class 1.27, over 50 micro inches (1.27 µm) minimum of nickel in accordance with SAE-AMS-QQ-N-290, class 1, including the ID, measured at a depth of .040 inch minimum. The plating on non-significant surfaces in the ID shall be of sufficient thickness to ensure plating continuity and uniform utility and protection. This plating may consist of an underplate only. A silver underplate shall not be permitted.
All other parts shall be silver plated to a minimum thickness of 0.0002 inches (0.005 mm) in accordance with ASTM 8700.
Part or Identifying Number (PIN): MS90577-273.
Changes from previous issue. The margins of this specification are marked with vertical lines to indicate where changes from the previous issue were made. This was done as a convenience only and the Government assumes no liability whatsoever for any inaccuracies in these notations. 8idders and contractors are cautioned to evaluate the requirements of this document based on the entire content irrespective of the marginal notations and relationship to the last previous issue.
Referenced documents. In addition to MIL-DTL-27434, this document references the following: MIL-STD-202
MIL-STD-348
ASTM 8488
SAE-AMS-QQ-N-290
ASTM 8700
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