5305-00-978-9388
Find complete technical information, availability, and procurement data for: 5305-00-978-9388
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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.
1.125 inches minimum and 1.190 inches maximum thread length, flat chamfer head style, right-hand thread direction, 2.690 inches minimum and 2.750 inches maximum fastener length, 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
- 1.125 inches minimum and 1.190 inches maximum
- Fastener Length
- 2.690 inches minimum and 2.750 inches maximum
- Head Style
- flat chamfer
- Head Diameter
- 0.365 inches minimum and 0.375 inches maximum
- Head Height
- 0.244 inches minimum and 0.250 inches maximum
- Internal Drive Style
- hexagon
- Nominal Thread Diameter
- 0.250 inches
- Width Across Flats
- 0.187 inches minimum and 0.190 inches maximum
- Thread Quantity Per Inch
- 20
- 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
- Material
- steel overall
- Surface Treatment
- cadmium and chromate overall
- Surface Treatment Document And Classification
- qq-p-416,ty 2,cl 3 fed spec all treatment responses overall
- Thread Series Designator
- unc
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 5305-01-267-9798 | No Name Available | 05/01/1996 |
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 |
|---|---|
| 5305009789388 | Socket Head Cap Screw |
| 967168C1 | Socket Head Cap Screw |
| MS16997-69 | Socket Head Cap Screw |
FAQs
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Does NSN 5305-00-978-9388 require demilitarization?
Does NSN 5305-00-978-9388 contain precious materials?
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When the NSN 5305-00-978-9388 was assigned to the Federal Catalog?
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