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1/4" Long Frame Dual Jack, Switchcraft Types 414 and 482; max dia. 0.562" (14.3)

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Long frame jacks are designed especially for high quality communication equipment, and to meet exacting MIL specifications, as well as telephone and communication systems. Rugged steel frames are produced in specially designed dies, press welded to provide rigidity and dimensional stability required by telephone and communication jack panels - and to meet MIL frame strength tests. A and C frame styles are available. WMT-Jax have wire-wrapping terminals.

A single row of jacks can be installed with a single buss wire connected to all ground lugs in a row, or when double rows are mounted on .625" vertical centers with lugs oriented between rows, holes in ground lugs line up so a single buss wire provides connections for both rows.

MIL jack types listed have been adjusted for use with plugs specified in Amendment No.1, MIL-P-642, usually M642/1-1, M642/1-2, M642/2-1, M642/2-2, M642/4-1 or M642/4-2. When applicable, specify the plug you will use; we will adjust with that plug where the item is not a MIL-type.

Contacts on shunts and isolated switching circuits are welded crossbar palladium. Welded crossbar gold alloy contacts (WEco #1) are available on special order for dry circuit applications


  • Number of Conductors: 3
  • Mounting Type: Panel
  • Termination Style: Wire Wrap
  • Contact Plating: Palladium
  • Sealed: Not Sealed
  • Packaging Type: Bulk
  • Number of Stations: 2
  • Standard Connector Type: MIL-Type Jacks & Plugs
  • Shunt: Shunted
  • Jack-Plug Type: Jack


  • Contact Resistance: 0.03 Ohms
  • Dielectric Withstanding Voltage: 500 Volts
  • Insulation Resistance: 10000 MOhms
  • Circuit-Schematic: Crossover Wired


  • Life Cycle: 10000 Cycles


  • Temperature Range: -55C to +85C
  • Humidity Rating: MIL-STD-202 Method 106
  • Moisture Resistance: MIL-STD-202 Method 106
  • Salt Spray: MIL-STD-202 Method 101
  • Mechanical Shock: MIL-STD-202 Method 213 Test Cond H
  • Vibration: MIL-STD-202 Method 213
  • Minimum Temperature: -55 C
  • Maxiumum Temperature: 85 C


  • RoHS Compliant: Compliant
  • REACH Compliant: Compliant
  • Brand: Switchcraft


  • Body Material: Copper Alloy
  • Contact Material: Gold Alloy
  • Insert Material Type: Thermoplastic
  • Terminal Material: Copper Alloy Tinnned
  • Spring Material: Palladium
  • Frame Material: Steel