AN4-6 - Drilled Aerospace Machine Bolt
The AN4-6 Drilled Aerospace Machine Bolt is a high-strength, precision-engineered fastener designed for use in critical aircraft applications where secure connections are essential. This bolt features a 1/4-inch diameter and a drilled shank, allowing it to be used with safety wire to prevent loosening due to vibration, a common requirement in aviation. Manufactured to strict AN (Army-Navy) specifications, the AN4-6 bolt is constructed from high-grade materials to withstand demanding conditions, ensuring durability and reliability in aerospace and defense environments. Ideal for structural applications, this bolt is built to maintain integrity under high-stress loads, making it a reliable choice for aviation maintenance and assembly.
Specifications:
- Manufacturer: Certified Aerospace Supplier
- Part Number: AN4-6
- Type: Drilled Machine Bolt
- Size: 1/4-inch diameter, 3/4-inch length
- Material: High-strength alloy steel, corrosion-resistant
- Application: Suitable for structural assembly and maintenance in aviation and defense applications
- Design Feature: Drilled shank for safety wire compatibility
- Certification: Meets or exceeds AN (Army-Navy) specifications for aerospace fasteners
Features:
- AN-Specification Certified: Engineered to meet rigorous AN standards, ensuring reliability and compliance in critical aerospace applications.
- Drilled Shank: Allows for use with safety wire to secure connections and prevent loosening due to vibration, increasing safety.
- High-Strength Alloy Steel: Provides superior strength and corrosion resistance, ensuring durability and long-term performance in challenging conditions.
- Secure and Reliable Fit: Maintains structural integrity under high-stress loads, ideal for essential aircraft components.
- Easy Installation: Compatible with various aircraft structures, providing a versatile solution for assembly and maintenance needs.
The AN4-6 Drilled Aerospace Machine Bolt is a high-performance fastener crafted for aircraft applications requiring secure, vibration-resistant connections. Designed to AN specifications, this 1/4-inch diameter bolt features a drilled shank compatible with safety wire, enhancing safety by preventing loosening under high-vibration conditions. Constructed from high-strength alloy steel, the AN4-6 bolt provides excellent corrosion resistance and durability, making it ideal for aviation assembly and maintenance where reliability is critical.
Available now at AirParts.Aero, this bolt ensures structural integrity and safety for your aircraft's essential systems.
Standard Part
Description: Machine Bolt
Part Number: AN4-6
Alternate Part Numbers: 400-103, 900879K36
Product Overview:
An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. the threaded and unthreaded portions are both of one diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. a locking feature may be incorporated in the design of the head or threads. head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. for items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, bolt, shear. See also screw, cap, hexagon head and screw, machine.
Item Specification:
| Thread Class | 3A | |
| Thread Direction | Right-hand | |
| Thread Length | 0.469 inches minimum | |
| Fastener Length | 0.781 inches nominal | |
| Head Style | Hexagon | |
| Head Height | 0.140 inches minimum and 0.172 inches maximum | |
| Width Between Flats | 0.428 inches minimum and 0.440 inches maximum | |
| Shank Unthreaded Hole Diameter | 0.076 inches nominal first hole | |
| Nominal Thread Diameter | 0.250 inches | |
| Grip Length | 0.312 inches nominal | |
| Features Provided | Finished head | |
| Thread Quantity per Inch | 28 | |
| Minimum Tensile Strength | 125000 pounds per square inch | |
| Hardness Rating | 26.0 rockwell C minimum overall and 32.0 rockwell C maximum overall | |
| Distance from Head Largest Bearing Surface to Shank Hole Center | 0.624 inches nominal first hole | |
| Material | Steel 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 Classification | MIL-B-6812 mil spec all material responses overall | |
| Surface Treatment | Cadmium overall and chromate overall | |
| Surface Treatment Document and Classification | QQ-P-416 type 2 class 3 fed spec single treatment response overall | |
| Thread Series Designator | UNF |
Fits In:
- · Bombardier Learjet 55
- · Embraer Legacy 600-650
- · Embraer Phenom 300
- · Textron Aviation Cessna 500 Citation I-ISP
- · Textron Aviation Cessna 550 Citation I-II-Bravo
- · Textron Aviation Cessna 560 Citation V-Ultra-Encore-Excel-XLS
- · Textron Aviation Cessna 650 Citation III-IV-VI-VII
- · Textron Aviation Cessna 680 Citation Sovereign
- · Textron Aviation Cessna 750 Citation X
| Additional info | |
|---|---|
| Colors | Gold |
| Dimensions | |
|---|---|
| Dimensions (W x H x D) | 0.94" x 0.44" x 0.44" inches |
| Length | 0.94" inches |
| Weight | 0.02 lb |
| Specifications | |
|---|---|
| 8130-3 Eligible | No |
| ATA Chapter | 51 ATA Standard Practices and Structures |
| Available Conditions | NE / NS |
| Cage Code | 88044 |
| Country of origin | United States of America |
| ECCN / USML | 9A991.d |
| FAA Approval Code | STD |
| Grip | 0.469" inches |
| Hazmat Code | Not Applicable |
| Hazmat(Y/N) | N |
| Material | Steel overall |
| NSN | 5306-00-144-3705 |
| Schedule B | 7318.15.2000 |
| Thread | 3A |
| Total Shelf Life (days) | Not Applicable |
| Type | Bolt |
| Units of Measure (UoM) | Each |
| Brand | Aeronautical Standards Group |
| Color | Gold |
| Condition status | Depreciated |