5306-00-146-2678
Find complete technical information, availability, and procurement data for: 5306-00-146-2678
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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.
3a thread class, 0.778 inches minimum and 0.798 inches maximum thread length, right-hand thread direction, 1.413 inches nominal fastener length, double hexagon w/hole head style
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
- 0.778 inches minimum and 0.798 inches maximum
- Fastener Length
- 1.413 inches nominal
- Head Style
- double hexagon w/hole
- Head Height
- 0.504 inches nominal
- Width Between Flats
- 0.553 inches minimum and 0.564 inches maximum
- Extended Washer Diameter
- 0.818 inches minimum and 0.828 inches maximum
- Extended Washer Thickness
- 0.123 inches nominal
- Grip Diameter
- 0.4985 inches minimum and 0.4995 inches maximum
- Nominal Thread Diameter
- 0.500 inches
- Grip Length
- 0.615 inches minimum and 0.635 inches maximum
- Thread Quantity Per Inch
- 20
- Minimum Tensile Strength
- 180000 pounds per square inch
- Hardness Rating
- 39.0 rockwell c minimum and 43.0 rockwell c maximum overall
- Material
- steel comp 8740 or steel comp 4140 or steel comp e4340 or steel comp 4340 or steel comp 6150 overall
- Surface Treatment
- cadmium and chromate overall
- Surface Treatment Document And Classification
- qq-p-416,ty 2,cl 2 fed spec single treatment response overall
- Thread Series Designator
- unjf
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 |
|---|---|
| MS21250-08010 | Shear Bolt |
| VFK100G-08010 | Shear Bolt |
FAQs
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When the NSN 5306-00-146-2678 was assigned to the Federal Catalog?
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