Skip to Content

NUT - AN316-4L

(0 review)
1.29 1.29

NUT - AN316-4L
Genuine OEM Parts

Description:   NUT
Part number:   AN316-4L
Industry Standards/Certification:   AN316

Jam Nut - Thread: 1/4-28, Cadmium Plated Steel, Left-Hand Thread

AN316-4L   FEATURES

PARAMETERCHARACTERISTIC
Thread Class      3B
Thread DirectionLeft-hand
Nut StyleHexagon
Nut Height0.125 inches nominal
Width Across Flats0.428 inches minimum and 0.440 inches maximum
Thread SeriesUNF
Thread Quantity per Inch28
Hardness Rating80.0 rockwell b minimum and 32.0 rockwell C maximum
Nominal Thread Size0.250 inches
Countersink Angle110.0 degrees nominal nut
Bearing Surface TypeChamfered
MaterialSteel overall
Surface TreatmentCadmium overall
Surface Treatment Document and ClassificationQQ-P-416, ty 2, cl 2 fed spec single treatment response overall
Nondefinitive Spec/STD Data2 type and a grade


This part is used on the following aircraft:

  1. •Bombardier Challenger 601
  2. •Bombardier Challenger 604
  3. •Bombardier Challenger 605
  4. •Dassault Falcon 900 all variants
  5. •Pilatus PC-12
  6. •Textron Aviation Beechcraft King Air 200 - all variants
  7. •Textron Aviation Cessna 680 Citation Sovereign
  8. •Textron Aviation Cessna 750 Citation X