186271
View detailed technical data, stock status, and sourcing information for: 186271
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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.
hexagon head style, 3.750 inches nominal fastener length, 0.874 inches minimum thread length, 2a thread class, 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
- 2a
- Thread Direction
- right-hand
- Thread Length
- 0.874 inches minimum
- Fastener Length
- 3.750 inches nominal
- Head Style
- hexagon
- Head Height
- 0.195 inches minimum and 0.211 inches maximum
- Width Between Flats
- 0.489 inches minimum and 0.500 inches maximum
- Nominal Thread Diameter
- 0.312 inches
- Features Provided
- finished head
- Thread Quantity Per Inch
- 18
- Minimum Tensile Strength
- 120000 pounds per square inch
- Hardness Rating
- 23.0 rockwell c minimum and 32.0 rockwell c maximum overall
- Material
- steel overall
- Material Document And Classification
- sae gr 5 assn std single material response 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
- unc
- Nondefinitive Spec/Std Data
- 2 type and 10p style and 5 grade
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 5306-00-577-5534 | No Name Available | 02/01/1995 |
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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 |
|---|---|
| 01-0296 ITEM NO 56 | Machine Bolt |
| 0717703 | Machine Bolt |
| 13207E5471FN53 | Machine Bolt |
| 186271 | Machine Bolt |
| 5306002258511 | Machine Bolt |
| 5306PL1494900 | Machine Bolt |
| 5471FN53 | Machine Bolt |
| MS35295-47 | Machine Bolt |
| MS90725-47 | Machine Bolt |
| SPP61-0170 | Machine Bolt |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5306-00-225-8511?
Does the NSN 5306-00-225-8511 have a Schedule B code assigned?
Does NSN 5306-00-225-8511 require demilitarization?
Does NSN 5306-00-225-8511 contain precious materials?
Does NSN 5306-00-225-8511 contain hazardous materials?
When the NSN 5306-00-225-8511 was assigned to the Federal Catalog?
Professional Distribution
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- ITAR Registered
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- AS9120 Quality Standards
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