AN3-21A - BOLT, MACHINE

NSN: 5306-00-151-0775, NIIN: 1510775
New Surplus, Sold Per Each

A machine bolt is a heavy-duty fastener with a hexagonal head and a fully or partially threaded shank, designed for securing two or more components together.

Specifications

Head Style: Hexagon
Surface Treatment: Cadmium And Chromate
Material: Steel
Fastener Length: 2.156" Nom
Grip Length: 1.750" Nom
Head Height: 0.109" Min - 0.141" Max
Tensile Strength Min: 125000 Pounds Per Square Inch
Width Between Flats: 0.365" Min - 0.377" Max
Features Provided: Finished Head

Part Number Info

Part Number: AN3-21A
Unpunctuated: AN321A
NSN: 5306-00-151-0775
NIIN: 1510775

Potential Alternates: 908135, 5306PL1494454, 326-2617, 326-2617-080

Replaces Cancelled NSN: 5306-00-774-7147, 5306-00-734-5797, 5306-00-543-4287

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.

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.

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