BOEING 3M989V4-9-27 Bolt Fluid Passage Harrier Alcoa Global AV-8B Fastener 3M989V4-8-27

( Brand: Boeing ), ( Manufacturer Part Number: 3M989V4-9-27 ), ( Part Type: Fluid Bolt Fastener )

Review BOEING Bolt Fluid Passage Harrier Alcoa Global Fastener

The Boeing 3M989V4-9-27 bolt is a critical component in the Av-8B Harrier II aircraft, manufactured by Alcoa Global Fasteners. This bolt is specifically designed for use in fluid passages, ensuring the efficient and reliable transfer of fluids throughout the complex aviation system.

Measuring 0.250 inches in diameter and 1.5 inches in length, this bolt features a 9/16-24 UNC thread configuration on both ends. The threaded portion of the bolt is made of SAE 51420 alloy steel, providing exceptional strength and durability, while the unthreaded portion is manufactured from 7075-T6 aluminum alloy, which is lightweight and resistant to corrosion.

The bolt's most distinctive feature is its fluid passage design. This design incorporates a central bore that extends the entire length of the bolt, allowing fluid to flow unobstructed through the fastener. The bore is precision-machined to ensure a leak-free seal, enabling the efficient transfer of fluids between components.

In addition to its fluid passage capabilities, the Boeing 3M989V4-9-27 bolt also features a high-strength, tempered head. This head provides extra holding power and prevents the bolt from backing out during the rigors of aviation use. The head is also designed to provide a flat seating surface for easy installation and removal.

Another important aspect of this bolt is its compliance with FAA-PMA requirements. This means that it has been designed, tested, and certified to meet or exceed the performance specifications of the original equipment manufacturer's (OEM) part. This ensures that the bolt will function reliably and safely in the demanding environment of the Av-8B Harrier II aircraft.

In conclusion, the Boeing 3M989V4-9-27 bolt is a highly engineered fastener designed specifically for use in fluid passages in the Av-8B Harrier II aircraft. Its fluid passage design allows for efficient and reliable transfer of fluids, while its high-strength construction ensures durability and reliability under the extreme conditions of aviation use. With its FAA-PMA certification, this bolt provides the peace of mind that it will meet or exceed OEM performance specifications.

Boeing 3M989V4-9-27 and 3M989V4-8-27 Alcoa Fasteners for Harrier AV-8B: A Comparison of Pros, Cons, and Recommendations

The Boeing 3M989V4-9-27 and 3M989V4-8-27 Alcoa fasteners are essential components used in the Harrier AV-8B aircraft. These fasteners are specifically designed for fluid passage applications. In this analysis, we will discuss the pros, cons, and provide a recommendation based on the available information.

1. High-strength design: This fastener is known for its high tensile strength, making it suitable for applications where high loads are anticipated.

2. Corrosion resistance: The fastener's material composition, primarily aluminum alloy, offers excellent resistance to corrosion.

3. Temperature tolerance: The fastener can withstand a broad temperature range, making it suitable for use in various environmental conditions.

1. Cost: Due to its high-performance features, the 3M989V4-9-27 fastener can be more expensive than other alternatives.

2. Complex installation process: The fastener's design and requirements may necessitate a more intricate installation process.

1. Cost-effective: Compared to the 3M989V4-9-27 fastener, this alternative is typically less expensive.

2. Easier installation: The 3M989V4-8-27 fastener may have a simpler installation process due to its design and requirements.

1. Lower strength: This fastener has a lower tensile strength compared to the 3M989V4-9-27 fastener, which may not be suitable for all applications.

2. Less corrosion resistant: The 3M989V4-8-27 fastener may not offer the same level of corrosion resistance as the 3M989V4-9-27 fastener, which could lead to potential issues in harsh environments.

Both the Boeing 3M989V4-9-27 and 3M989V4-8-27 Alcoa fasteners have their unique advantages and disadvantages. If cost is a primary concern and the application does not require high tensile strength or exceptional corrosion resistance, the 3M989V4-8-27 fastener may be the more suitable choice. However, if the application demands high performance features, the 3M989V4-9-27 fastener is the recommended option, despite its higher cost and more complex installation process.

Based on the given analysis, it is recommended to use the Boeing 3M989V4-9-27 fastener for fluid passage applications in the Harrier AV-8B aircraft where high tensile strength, corrosion resistance, and temperature tolerance are essential. If cost is a significant concern, the 3M989V4-8-27 fastener could be considered as a less expensive alternative for less demanding applications.

Details:

part #: 3m989v4927 prices

• $48.99-$67.85

specifications aviationpar:

• brand: Boeing
• mpn: 3m989v4-9-27
• part type: Fluid Bolt Fastener

payments aviationpar:

• credit card: Mastercard
• other
• wallet: Google-pay

seller aviationpar:

• # reviews: 25764
• rating: 99.6%
• city: Warren, Michigan

offer aviationpar:

• options: Ship-to-home
• quantity: 3
• availability: In Stock
• sold: 0
• best offers: True
• started: November 27, 2025

returns aviationpar:

• policy: Returns Accepted
• time: 30 Days
• paid by: Seller

general aviationpar:

• Parts Accessories > Aviation Parts Accessories > Parts
• condition: New

shipping aviationpar:

• type: Calculated
• class: Standard
• carrier: USPS
• transit: 5-9 Days
• service: USPS Ground Advantage
• cost: $10.65

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