5306-00-286-3979
Find complete technical information, availability, and procurement data for: 5306-00-286-3979
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An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. The threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. For items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, bolt, shear. See also screw, cap, hexagon head and screw, machine.
1.531 inches nominal fastener length, right-hand thread direction, hexagon head style, 2a thread class, 1.531 inches minimum thread 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
- 2a
- Thread Direction
- right-hand
- Thread Length
- 1.531 inches minimum
- Fastener Length
- 1.531 inches nominal
- Head Style
- hexagon
- Head Height
- 0.219 inches nominal
- Width Between Flats
- 0.428 inches minimum and 0.440 inches maximum
- Nominal Thread Diameter
- 0.250 inches
- Features Provided
- finished head
- Thread Quantity Per Inch
- 28
- Minimum Tensile Strength
- 130000 pounds per square inch
- Hardness Rating
- 28.0 rockwell c minimum and 36.0 rockwell c maximum overall
- Material
- steel comp 4340 or steel comp e4340 overall
- Material Document And Classification
- mil-s-5000,com+4340 mil spec 1st material response or mil-s-5000,comp e4340 mil spec 2nd material response overall
- Surface Treatment
- cadmium overall
- Thread Series Designator
- unf
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 5306-00-033-7130 | No Name Available | 03/01/1982 |
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 |
|---|---|
| 6515121 | Machine Bolt |
FAQs
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