Aeronautical Standards Group - NUT - AN818-4D
Genuine OEM Part
Description: NUT, Coupling Nut, Aluminum Tube Nut
Part number: AN818-4D
Coupling Nut - Tube Outer Diameter: 1/4", Thread: 7/16-20, Flared Tube, Aluminum
AN818-4D SPECIFICATIONS
| Parameter | Characteristics | |
| Thread Class | 3B | |
| Thread Direction | Right-hand | |
| Fabrication Method | Any acceptable | |
| Nut Style | Tube coupling | |
| Nut Height | 0.620 inches nominal | |
| End Item Identification | B-1 aircraft support equipment. B-52 aircraft support equipment. TF33-P-3/5/9 (C/EC-135, B-52H) aircraft engine. H-3 helicopter support equipment. | |
| Width Across Flats | 0.563 inches nominal | |
| Length to Shoulder | 0.532 inches nominal | |
| Smallest Inside Diameter | 0.305 inches nominal | |
| Thread Series | UNF | |
| Thread Quantity per Inch | 20 | |
| Nominal Thread Size | 0.438 inches | |
| Nominal Tube Outside Diameter | 0.250 inches | |
| Criticality Code Justification | FEAT | |
| Special Features | Weapon system essential. grumman A-10 aircraft | |
| Material | Aluminum alloy overall | |
| Surface Treatment | Anodize overall |
This part is used on the following aircraft:
- •Bombardier Challenger 601
- •Bombardier Challenger 604
- •Bombardier Challenger 605
- •Dassault Falcon 2000 all variants
- •Dassault Falcon 7X
- •Dassault Falcon 900 all variants
- •Embraer Legacy 600-650
- •Textron Aviation Beechcraft King Air 100 - all variants
- •Textron Aviation Beechcraft King Air 90 - all variants
- •Textron Aviation Cessna 500 Citation I-ISP
- •Textron Aviation Cessna 550 Citation I-II-Bravo
- •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 700
- •Textron Aviation Hawker 800
- •Textron Aviation Hawker 800XP-850XP
- •Textron Aviation Hawker 900XP
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