NAS1304-125D
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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, dished hexagon head style, right-hand thread direction, 0.425 inches nominal thread length, 8.223 inches minimum and 8.253 inches maximum 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
- 0.425 inches nominal
- Fastener Length
- 8.223 inches minimum and 8.253 inches maximum
- Head Style
- dished hexagon
- Head Height
- 0.125 inches minimum and 0.140 inches maximum
- Width Between Flats
- 0.430 inches minimum and 0.439 inches maximum
- Grip Diameter
- 0.2485 inches minimum and 0.2495 inches maximum
- Shank Unthreaded Hole Diameter
- 0.076 inches nominal first hole
- Nominal Thread Diameter
- 0.250 inches
- Grip Length
- 7.803 inches minimum and 7.823 inches maximum
- Thread Quantity Per Inch
- 28
- Minimum Tensile Strength
- 160000 pounds per square inch
- Hardness Rating
- 36.0 rockwell c minimum and 40.0 rockwell c maximum overall
- Distance From Head Largest Bearing Surface To Shank Hole Center
- 8.060 inches nominal first hole
- Material
- steel overall
- Surface Treatment
- cadmium 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 |
|---|---|
| NAS1304-125D | Shear Bolt |
FAQs
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What is the FSCG of the NSN 5306-01-311-6240?
Does the NSN 5306-01-311-6240 have a Schedule B code assigned?
Does NSN 5306-01-311-6240 require demilitarization?
Does NSN 5306-01-311-6240 contain precious materials?
Does NSN 5306-01-311-6240 contain hazardous materials?
When the NSN 5306-01-311-6240 was assigned to the Federal Catalog?
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