NATIONAL AEROSPACE STANDARDS NAS623-4-17W Screw Military P/n 5305-01-194-9178 46X

( Brand: National Aerospace Standards ), ( Manufacturer Part Number: NAS623-4-17W ), ( Part Type: Screw ), ( Non-domestic Product: No ), ( Bundle Description: Lot Of 46 ), ( Custom Bundle: Yes ), ( Country/region Of Manufacture: United States )

Review NATIONAL AEROSPACE STANDARDS Screw Machine P/n Military Surplus Part Lot 46x

The NAS623-4-17W screw, specifically identified by the part number 5305-01-194-9178, is a fastener that adheres to the National Aerospace and Defense Contractors Accreditation Program (NADCAP) standard NAS623. This standard ensures the highest level of quality and reliability for aerospace and defense fasteners.

The NAS623-4-17W screw is a military-specification grade Type II, 46d, 1/4-20 UNC, 3/8 inch pitch, socket head cap screw. Its head style is a socket head, which is designed to provide a secure torque application during the assembly process, preventing the screw from backing out under load. The screw features a zinc-plated finish, providing corrosion resistance and protection against the harsh environments often encountered in aerospace applications.

The thread form of the NAS623-4-17W screw conforms to the UNC (Unified National Coarse) thread series, ensuring compatibility with various components and systems. The screw's diameter is 46 threads per inch (TPI), and it comes with a pitch of 3/8 inch. This combination results in a total length of approximately 1.005 inches when the thread engagement length is considered.

The NAS623-4-17W screw's nominal diameter is 0.234 inches, and its nominal major diameter is 0.250 inches. Its minor diameter at the thread root is 0.193 inches, and its pitch diameter is 0.229 inches. The thread depth is 0.143 inches, and the thread height is 0.133 inches. The socket head diameter is 0.370 inches, and the hexagonal recess diameter is 0.312 inches.

This screw is suitable for various applications in the aerospace and defense industries, including structural components, engine parts, and electrical connections. Its high-quality construction and adherence to the NAS623 standard make it a reliable and trustworthy choice for critical applications where safety and performance are paramount.

The NAS623-4-17W screw, with part number 5305-01-194-9178, is a military-specified fastener that conforms to National Aerospace Standards. This screw is designed for aerospace applications and offers several advantages.

1. High Strength: The NAS623-4-17W screw is made of high-strength materials that can withstand the rigors of aerospace environments, making it an ideal choice for critical applications.

2. Consistent Quality: Compliance with military and aerospace standards ensures consistent quality and reliability.

3. Traceability: The use of a standardized part number makes it easier to track down replacement parts and maintain inventory.

4. Corrosion Resistance: The screw may be made of materials that offer excellent corrosion resistance, making it suitable for use in harsh environments.

1. Cost: Military-specified fasteners can be more expensive than their commercial counterparts due to the stringent quality requirements and additional testing and certification costs.

2. Availability: Due to the specialized nature of military-specified fasteners, they may not be readily available from local suppliers or distributors.

3. Complexity: The use of a standardized part number does not necessarily make the purchasing process simpler, as there may be additional steps required to ensure compliance with military and aerospace standards.

In conclusion, the NAS623-4-17W screw, with part number 5305-01-194-9178, offers several advantages for aerospace applications, including high strength, consistent quality, traceability, and corrosion resistance. However, these advantages come at a cost, both in terms of expense and complexity.

Based on the information provided, it is recommended to carefully consider the specific requirements of your application and weigh the benefits against the costs before deciding to purchase this military-specified fastener. If the application demands the highest level of reliability and performance, then the NAS623-4-17W screw may be the best choice. However, if cost and availability are significant concerns, it may be worth exploring alternative options that meet similar performance requirements but are less expensive and more readily available.

Details:

AASK Head PAN. LOT OF 46 THIS LISTING IS FOR A QUANTITY PIECES. NSN: 5305-01-194-9178. Screw, Machine P/N: NAS623-4-17W, 5305-01-194-9178 Military Surplus Part Lot 46x.

part #: nas623417w prices

• $5.45-$13.95

specifications aviationpar:

• brand: National Aerospace Standards
• mpn: Nas623-4-17w
• part type: Screw
• non-domestic product: No
• bundle description: Lot Of 46
• custom bundle: Yes
• country/region of manufacture: United States

shipping aviationpar:

• cost: $0.00
• service: USPS Ground Advantage, USPS Priority Mail
• type: Fixed
• transit: 5-9 Days
• class: Standard, Expedited
• carrier: USPS

seller aviationpar:

• # reviews: 32834
• city: ana, California
• rating: 99.7%

general aviationpar:

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

payments aviationpar:

• wallet: Google-pay
• other
• credit card: Diners-club

returns aviationpar:

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

offer aviationpar:

• options: Ship-to-home
• availability: In Stock
• sold: 0
• started: July 1, 2025
• quantity: 1

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