5305-00-013-8378
Find complete technical information, availability, and procurement data for: 5305-00-013-8378
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An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes:items with bevel (conical) heads. See bolt, internal wrenching. Excludes:screw, shoulder; and screw, machine.
3a thread class, flat chamfer head style, 2.719 inches minimum and 2.781 inches maximum fastener length, 1.437 inches minimum 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
- 1.437 inches minimum
- Fastener Length
- 2.719 inches minimum and 2.781 inches maximum
- Head Style
- flat chamfer
- Head Diameter
- 0.863 inches minimum and 0.875 inches maximum
- Head Height
- 0.616 inches minimum and 0.625 inches maximum
- Internal Drive Style
- hexagon
- Nominal Thread Diameter
- 0.625 inches
- Width Across Flats
- 0.500 inches minimum and 0.503 inches maximum
- Thread Quantity Per Inch
- 18
- Hardness Rating
- 36.0 rockwell c minimum and 43.0 rockwell c maximum overall
- Material
- steel 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Below is a list of NSNs that have been officially superseded by this NSN: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 |
|---|---|---|
| 5305-00-274-2569 | No Name Available | 01/01/1963 |
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 |
|---|---|
| 138378 | Socket Head Cap Screw |
FAQs
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When the NSN 5305-00-013-8378 was assigned to the Federal Catalog?
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