S4649406-20
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A high strength, 160,000 pounds per square inch (1100 megapascals) minimum tensile strength externally threaded fastener designed for use in applications involving great shear stress. The head is designed to accommodate an external wrench or driver. The head is not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. The unthreaded portion is of specific grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. A locking feature may be incorporated in the design of the head or threads. See bolt, machine and bolt, clevis.
hexagon head style, right-hand thread direction, 0.344 inches minimum thread length, 3a thread class, 1.594 inches nominal fastener length
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Thread Class
- 3a
- Thread Direction
- right-hand
- Thread Length
- 0.344 inches minimum
- Fastener Length
- 1.594 inches nominal
- Head Style
- hexagon
- Head Height
- 0.109 inches minimum and 0.141 inches maximum
- Width Between Flats
- 0.428 inches minimum and 0.440 inches maximum
- Grip Diameter
- 0.2494 inches minimum and 0.2497 inches maximum
- Shank Unthreaded Hole Diameter
- 0.076 inches nominal first hole
- Nominal Thread Diameter
- 0.250 inches
- Grip Length
- 1.250 inches nominal
- Thread Quantity Per Inch
- 28
- Minimum Tensile Strength
- 160000 pounds per square inch
- Distance From Head Largest Bearing Surface To Shank Hole Center
- 1.466 inches nominal first hole
- Material
- steel overall
- Surface Treatment
- cadmium head
- Surface Treatment
- cadmium threads
- Surface Treatment
- oxide grip
- Surface Treatment Document And Classification
- qq-p-416 ty1 cl3 fed spec single treatment response head
- Surface Treatment Document And Classification
- qq-p-416 ty1 cl3 fed spec single treatment response threads
- Thread Series Designator
- unf
Related Parts
This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:
| Part Number | Name |
|---|---|
| S4649406-20 | Shear Bolt |
FAQs
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What is the FSCG of the NSN 5306-00-851-9629?
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Does NSN 5306-00-851-9629 require demilitarization?
Does NSN 5306-00-851-9629 contain precious materials?
Does NSN 5306-00-851-9629 contain hazardous materials?
When the NSN 5306-00-851-9629 was assigned to the Federal Catalog?
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