AN3-12A – Hexagon Head Steel Military Standard Aircraft Machine Bolt
High-Strength, FAA-Approved Aerospace Bolt for Secure Aircraft Fastening
Available now at Airparts.aero.
Product Overview
The AN3-12A Hexagon Head Steel Military Standard Aircraft Machine Bolt is a precision-engineered fastener, designed to provide exceptional strength, durability, and vibration resistance in critical aircraft applications. Manufactured to MIL-SPEC (Military Standard) AN3 specifications, this high-strength steel bolt ensures secure attachment of airframe, engine, and control components in both general aviation and military aircraft.
The AN3-12A bolt features a cadmium-plated finish for corrosion resistance and extended lifespan, making it ideal for high-stress, high-torque environments.
Key Features and Benefits
- MIL-SPEC Certified for Aircraft Structural Integrity:
Meets or exceeds AN (Army-Navy) standard requirements for aerospace fasteners. - Hexagon Head Design for Secure Fastening:
Provides high-torque application and superior grip. - High-Strength Steel Construction for Maximum Durability:
Withstands heavy loads, extreme temperatures, and repetitive stress cycles. - Corrosion-Resistant Cadmium Plating for Longevity:
Protects against moisture, oxidation, and harsh aviation environments. - Optimized for High-Torque and Vibration-Resistant Applications:
Prevents loosening in critical fastening areas. - FAA-Compliant for Aviation Safety and Airworthiness:
Designed for secure installation in structural and mechanical assemblies.
Technical Specifications
- Part Number: AN3-12A
- Type: Military Standard Aircraft Machine Bolt
- Head Type: Hexagon
- Thread Size: 10-32
- Length: 1.125 inches (1 1/8")
- Material: High-strength cadmium-plated steel
- Standard: AN (Army-Navy) MIL-SPEC
- Application: Structural, engine, and airframe assemblies
- Certification: MIL-SPEC Approved, FAA-Compliant
Aircraft Compatibility
The AN3-12A Military Standard Aircraft Machine Bolt is designed for general aviation, commercial, and military aircraft, including Textron, Cessna, Beechcraft, Piper, and Boeing models.
Refer to your aircraft’s maintenance manual or consult a certified aviation technician to verify compatibility.
Applications
- Airframe Structural Fastening: Provides secure and high-torque fastening in critical areas.
- Engine Mounting and Powerplant Support: Ensures reliable attachment under high-stress conditions.
- Landing Gear and Flight Control Linkage: Offers high vibration resistance for moving components.
Why Choose the AN3-12A Military Standard Aircraft Machine Bolt?
✔ MIL-SPEC and FAA-Compliant Construction – Built for high-strength, corrosion-resistant fastening.
✔ Hex Head Design for Secure, High-Torque Applications – Prevents loosening in vibration-prone areas.
✔ Trusted by Aviation Professionals for Airframe and Engine Fastening – Meets strict military and FAA standards.
Order Your AN3-12A Aircraft Machine Bolt Today
Ensure secure and reliable aircraft assembly with the AN3-12A Hexagon Head Steel Military Standard Aircraft Machine Bolt. Visit Airparts.aero today to place your order and benefit from competitive pricing, fast shipping, and expert customer support.
Note: Verify compatibility with your aircraft’s maintenance manual and consult a certified aviation technician for proper installation.
Item Specification:
| Thread Class | 3A | |
| Thread Direction | Right-hand | |
| Thread Length | 0.374 inches minimum and 0.453 inches maximum | |
| Fastener Length | 1.266 inches minimum and 1.312 inches maximum | |
| Head Style | Hexagon | |
| Head Height | 0.109 inches minimum and 0.141 inches maximum | |
| Width Between Flats | 0.365 inches minimum and 0.377 inches maximum | |
| Nominal Thread Diameter | 0.190 inches | |
| Grip Length | 0.859 inches minimum and 0.906 inches maximum | |
| Features Provided | Finished head | |
| Thread Quantity per Inch | 32 | |
| Minimum Tensile Strength | 125000 pounds per square inch | |
| Hardness Rating | 26.0 rockwell C minimum overall and 32.0 rockwell C maximum overall | |
| Material | Steel comp 4140 overall or steel comp 8740 overall or steel comp 8630 overall or steel comp 8735 overall or steel comp 4130 overall or steel comp 4037 overall | |
| Material Document and Classification | MIL-S-5626 mil spec 1ST material response overall or MIL-S-6049 mil spec 2ND material response overall or MIL-S-6050 mil spec 3RD material response overall or MIL-S-6098 mil spec 4TH material response overall or MIL-S-6758 mil spec 5TH material response overall or ams 6300 assn std 6TH material response overall | |
| Surface Treatment | Cadmium overall and chromate overall | |
| Surface Treatment Document and Classification | QQ-P-416, type 2, class 3 fed spec all treatment responses overall | |
| Thread Series Designator | UNF |
Notes:
ONE-WAY SUPERSEDURE WITH P/N 130909B23 ON ONLY BEECH MODELS
Applicable Aircraft
- · Bombardier Challenger 601
- · Bombardier Challenger 604
- · Bombardier Learjet 55
- · Embraer Legacy 600-650
- · Embraer Phenom 300
- · Piaggio Avanti II
- · Piaggio Avanti P180
- · Textron Aviation Beechcraft King Air 100 - all variants
- · Textron Aviation Beechcraft King Air 200 - all variants
- · Textron Aviation Beechcraft King Air 300 - all variants
- · Textron Aviation Beechcraft King Air 90 - all variants
- · Textron Aviation Beechcraft Premier
- · Textron Aviation Cessna 500 Citation I-ISP
- · Textron Aviation Cessna 525 Citation Citationjet
- · 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
- · Textron Aviation Hawker 400-400XP
- · Textron Aviation Hawker 800
- · Textron Aviation Hawker 800XP-850XP
This may not be a complete list, refer to your RSM for applicability.
| Additional info | |
|---|---|
| Colors | Gold |
| Dimensions | |
|---|---|
| Dimensions (W x H x D) | 1.38" x 0.38" x 0.38" inches |
| Length | 1.38" 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 | EAR99 |
| FAA Approval Code | STD |
| Grip | 0.374" - 0.453" inches |
| Hazmat Code | Not Applicable |
| Hazmat(Y/N) | N |
| Material | Steel overall |
| NSN | 5306-00-151-0782 |
| 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 |
