AN176-31 - BOLT, CLOSE TOLERANCE

NSN: 5306-00-151-1517, NIIN: 1511517
New Surplus, Sold Per Each

A close tolerance bolt is a type of precision fastener manufactured to strict dimensional tolerances, ensuring a tight fit in high-stress or critical applications. These bolts are designed to minimize movement or play in the bolted joint, providing enhanced alignment and structural integrity.

Specifications

Head Style: Hexagon
Hole Configuration Style: Hexagon Flats
Hole Type: Drilled
Surface Finish: 63.0 Microinches - Bearing Surface Of Head
Surface Finish: 63.0 Microinches - Grip
Surface Treatment: Cadmium And Chromate
Material: Steel
Fastener Length: 3.203" nom
Grip Diameter: 0.3737" min - 0.3742" max
Grip Length: 2.562" nom
Head Height: 0.203" min - 0.235" max
Head Surface To Shank Hole Center: 3.000" nom - First Hole
Hole Diameter: 0.070" nom
Shank Unthreaded Hole Diameter: 0.106" nom - First Hole
Tensile Strength min: 125000 psi
Width Between Flats: 0.553" min - 0.565" max
Thread Class: 3A
Thread Diameter: 0.375"
Thread Direction: Right-Hand
Thread Quantity Per Inch: 24
Thread Series Designator: Unf
Hole Quantity: 1

Part Number: AN176-31
Unpunctuated: AN17631
NSN: 5306-00-151-1517
NIIN: 1511517

Potential Alternates: 86T31, AN176H31, B6812, B6812A
Replaces Cancelled NSN: 5306-00-180-0513

AN standards, originally developed by the U.S. Army and Navy, cover a variety of components such as bolts, nuts, and fittings, ensuring compatibility and reliability in military and aerospace systems.

New Surplus: These parts are classified as new and unused, meaning they have not been installed or placed into service. However, they come without traceability or original manufacturer certifications, which might be required for certain high-level regulatory uses. Our company provides its own Certificate of Conformance (CoC) as a statement of assurance that the parts are in good working condition and have been sourced from reliable channels. These are ideal when the focus is on cost-effectiveness without compromising on quality.

Sold Per Each: This item is sold individually, with the price listed for a single unit. Perfect for purchasing the exact quantity needed without the requirement to buy in bulk. For larger quantities, consider reviewing any available bulk pricing options.

Product Testing: Every product is inspected for accuracy, quality, and functionality before shipping to meet our high standards.

Alternate Part Numbers: Due to the nature of ever-evolving part numbering structure, multiple part numbers may meet the same specifications and performance standards. If only an alternate part number is available, we will contact you to confirm compatibility. We strongly recommend consulting the appropriate repair manuals to ensure accuracy before using an alternate part.

5000-175H

5000-175H - RING