5306-01-126-1201
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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, 1.621 inches minimum and 1.671 inches maximum thread length, hexagon head style, right-hand thread direction, 4.506 inches minimum and 4.536 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
- 1.621 inches minimum and 1.671 inches maximum
- Fastener Length
- 4.506 inches minimum and 4.536 inches maximum
- Head Style
- hexagon
- Head Height
- 0.625 inches minimum and 0.640 inches maximum
- Width Between Flats
- 1.801 inches minimum and 1.815 inches maximum
- Grip Diameter
- 1.2475 inches minimum and 1.2490 inches maximum
- Shank Unthreaded Hole Diameter
- 0.141 inches minimum and 0.151 inches maximum first hole
- Nominal Thread Diameter
- 1.250 inches
- Grip Length
- 2.865 inches minimum and 2.885 inches maximum
- Thread Quantity Per Inch
- 12
- Minimum Tensile Strength
- 180000 pounds per square inch
- Hardness Rating
- 39.0 rockwell c minimum and 43.0 rockwell c maximum overall
- Distance From Head Largest Bearing Surface To Shank Hole Center
- 4.107 inches minimum and 4.157 inches maximum first hole
- Surface Finish
- 32.0 microinches bearing surface of head
- Surface Finish
- 32.0 microinches grip
- Surface Finish
- 32.0 microinches threads
- Material
- steel comp e4340 or steel comp 8740 overall
- Material Document And Classification
- mil-s-5000 mil spec 1st material response or mil-s-6049 mil spec 2nd material response or ams 6322 assn std 2nd material response overall
- Surface Treatment
- cadmium and chromate overall
- Surface Treatment Document And Classification
- qq-p-416 type 2 class 2 fed spec single treatment response overall
- Thread Series Designator
- unjf
- Specification/Standard Data
- 80205-nas1970 professional/industrial association standard
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 |
|---|---|
| NAS1970-46D | Shear Bolt |
FAQs
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