AN6-25A - Textron Aviation Undrilled Shank Machine Bolt 3/8-24
AN6-25A - Textron Aviation Undrilled Shank Machine Bolt 3/8-24
BOLT - AN7-10A
BOLT - AN7-10A

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Genuine OEM Part

Description:   BOLT
Part number:     AN6-6A
Industry Standard Specification:     AIA/NAS NASM3-20



Thread Class3A
Thread DirectionRight-hand
Thread Length0.624 inches minimum and 0.701 inches maximum
Fastener Length0.828 inches minimum and 0.875 inches maximum
Head StyleHexagon
Head Height0.203 inches minimum and 0.235 inches maximum
Width Between Flats0.553 inches minimum and 0.565 inches maximum
Nominal Thread Diameter0.375 inches
Grip Length0.172 inches minimum and 0.204 inches maximum
Features ProvidedFinished head
Thread Quantity per Inch24
Minimum Tensile Strength125000 pounds per square inch
Hardness Rating26.0 rockwell C minimum overall and 32.0 rockwell C maximum overall
MaterialSteel comp 4037 overall or steel comp 4130 overall or steel comp 8630 overall or steel comp 8735 overall or steel comp 8740 overall or steel comp 4140 overall
Material Document and ClassificationMIL-B-6812 mil spec all material responses overall
Surface TreatmentCadmium overall and chromate overall
Surface Treatment Document and Classification  QQ-P-416 ty 2 cl 3 fed spec all treatment responses overall
Thread Series DesignatorUNF

This part is used on the following aircraft:

  1. •Bombardier Learjet 55
  2. •Embraer Legacy 600-650
  3. •Piaggio Avanti II
  4. •Piper Aircraft PA-42 Cheyenne
  5. •Textron Aviation Beechcraft King Air 100 - all variants
  6. •Textron Aviation Beechcraft King Air 200 - all variants
  7. •Textron Aviation Beechcraft King Air 300 - all variants
  8. •Textron Aviation Beechcraft King Air 90 - all variants
  9. •Textron Aviation Beechcraft Premier
  10. •Textron Aviation Cessna 500 Citation I-ISP
  11. •Textron Aviation Cessna 550 Citation I-II-Bravo
  12. •Textron Aviation Cessna 560 Citation V-Ultra-Encore-Excel-XLS
  13. •Textron Aviation Cessna 680 Citation Sovereign
  14. •Textron Aviation Cessna 750 Citation X

Between AirParts' branded hardware products, and our Seller's hardware offerings, we have hundreds of thousands of hardware parts in stock.




Dimensions (W x H x D) 0.375" x 0.375" x 0.828" Inches
Length 0.828" Inches
Weight 0.039 lb
8130-3 Eligible NO
Available Conditions NE
Cage Code 0RFT4
Country of origin United States of America
FAA Approval Code STD
Grip 0.172 inches minimum and 0.204 inches maximum
Hazmat Code Not Applicable
Hazmat(Y/N) N
Material Steel
NSN 5306-00-616-1224
Schedule B 7318.15.2000
Thread 3A-UNF
Total Shelf Life (days) Not Applicable
Type Bolt
Units of Measure (UoM) Each
Brand Mac Fasteners
Condition status Depreciated