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NAS509L4 Drilled Hex Nut

NAS509L4 Drilled Hex Nut

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Part numbers : RX1-NAS509L4 , 05850-1 , NAS509L4 , NAS509L4
Unit of Measure: EA

3.46 EUR / EA 3.46 EUR 3.46 € excl. VAT

3.46 EUR / EA excl. VAT

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Availability
20 EA ready to ship on Monday 2026-08-10
Order before 15:30 CET on Monday 2026-08-10
Up to 22 EA ready to ship on Monday 2026-08-17
Order before 15:30 CET on Monday 2026-08-10
19 EA available on request, fees apply
Special order from vendor stock.

NAS509L4 is a left-hand drilled hex nut for aerospace hardware applications requiring a 1/4-28 UNJF-3B internal thread. The drilled configuration provides for positive locking where specified by the applicable maintenance data or engineering drawing.

  • Part number: NAS509L4
  • Alternate manufacturer part number: 05850-1
  • Thread: 1/4-28 UNJF-3B
  • Thread direction: Left-hand
  • Material: 4130 alloy steel
  • Finish: Cadmium, Type II, Class 2
  • Heat treatment: 150 KSI minimum; 34–38 HRC

Supplied as an individual piece. Confirm the required part number, thread direction, locking method, material condition and applicable technical documentation before installation.

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