Aeronautical Standard Plain Castle Nut | AN310-4

Misc. Hardware

AN310-4

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Aeronautical Standard Plain Castle Nut | AN310-4

  • Thread Direction: Right-hand
  • Thread Class: 3b
  • Surface Treatment Specification: Qq-p-416 type 2 class 3 federal specification single treatment response
  • Surface Treatment: Cadmium
  • Nut Style: Hexagon castellated
  • Nut Height: Between 0.265 inches and 0.297 inches
  • Material: Steel
  • Surface Type: Chamfered or washer faced
  • Thread Qty Per Inch (tpi): 28
  • Thread Series: Unf (fine thread)
  • Thread Size: 0.250 inches
  • Width Across Flats: Between 0.428 inches and 0.440 inches