5306-01-520-7488
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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.
flat countersunk undercut head style, 0.427 inches minimum and 0.447 inches maximum fastener length, 3a thread class, 0.395 inches nominal thread length, right-hand thread direction
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
- 0.395 inches nominal
- Fastener Length
- 0.427 inches minimum and 0.447 inches maximum
- Head Style
- flat countersunk undercut
- Head Diameter
- 0.363 inches minimum
- Head Height
- 0.061 inches maximum
- Grip Diameter
- 0.2481 inches minimum and 0.2495 inches maximum
- Nominal Thread Diameter
- 0.250 inches
- Grip Length
- 0.042 inches nominal
- Thread Quantity Per Inch
- 28
- Minimum Tensile Strength
- 95000 pounds per square inch
- Countersink Angle
- 100.0 degrees nominal
- Part Name Assigned By Controlling Agency
- bolt, shear head
- Special Features
- cetyl alcohol lubrication
- Material
- titanium overall
- Surface Treatment
- aluminum overall
- 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 |
|---|---|
| BACB30NW8K7 | Shear Bolt |
FAQs
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