5305-00-273-4688
Find complete technical information, availability, and procurement data for: 5305-00-273-4688
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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.
1.250 inches nominal fastener length, 1.250 inches minimum thread length, right-hand thread direction, flat chamfer head style, 3a thread class
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
- 1.250 inches minimum
- Fastener Length
- 1.250 inches nominal
- Head Style
- flat chamfer
- Head Diameter
- 0.735 inches minimum and 0.750 inches maximum
- Head Height
- 0.492 inches minimum and 0.500 inches maximum
- Internal Drive Style
- hexagon
- Nominal Thread Diameter
- 0.500 inches
- Width Across Flats
- 0.375 inches minimum and 0.379 inches maximum
- Thread Quantity Per Inch
- 13
- Minimum Tensile Strength
- 160000 pounds per square inch
- Hardness Rating
- 36.0 rockwell c minimum and 45.0 rockwell c maximum overall
- Minimum Yield Strength
- 130000 pounds per square inch
- Surface Finish
- 125.0 microinches bearing surface of head
- Material
- steel overall
- Material Document And Classification
- 66 fed std single material response overall
- Thread Series Designator
- unc
- Nondefinitive Spec/Std Data
- 6 type
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 5305-00-013-8291 | 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 |
|---|---|
| 138291 | Socket Head Cap Screw |
| MS35455-103 | Socket Head Cap Screw |
FAQs
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What is the FSCG of the NSN 5305-00-273-4688?
Does the NSN 5305-00-273-4688 have a Schedule B code assigned?
Does NSN 5305-00-273-4688 require demilitarization?
Does NSN 5305-00-273-4688 contain precious materials?
Does NSN 5305-00-273-4688 contain hazardous materials?
When the NSN 5305-00-273-4688 was assigned to the Federal Catalog?
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