5305-00-988-7840
Find complete technical information, availability, and procurement data for: 5305-00-988-7840
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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.
flat chamfer head style, 0.859 inches minimum and 1.000 inches maximum thread length, right-hand thread direction, 3a thread class, 0.970 inches minimum and 1.000 inches maximum fastener 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
- 3a
- Thread Direction
- right-hand
- Thread Length
- 0.859 inches minimum and 1.000 inches maximum
- Fastener Length
- 0.970 inches minimum and 1.000 inches maximum
- Head Style
- flat chamfer
- Head Diameter
- 0.457 inches minimum and 0.469 inches maximum
- Head Height
- 0.306 inches minimum and 0.313 inches maximum
- Internal Drive Style
- hexagon
- Nominal Thread Diameter
- 0.312 inches
- Width Across Flats
- 0.250 inches minimum and 0.253 inches maximum
- Thread Quantity Per Inch
- 18
- Minimum Tensile Strength
- 80000 pounds per square inch
- Hardness Rating
- 80.0 rockwell b minimum overall
- Minimum Yield Strength
- 30000 pounds per square inch
- Material
- steel comp 302 or steel comp 303 or steel comp 304 or steel comp 305 or steel comp 316 overall
- Material Document And Classification
- 66 fed std all material responses overall
- Surface Treatment
- passivate overall
- Surface Treatment Document And Classification
- qq-p-35 fed spec single treatment 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Below is a list of NSNs that have been officially superseded by this NSN: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 |
|---|---|---|
| 5305-00-058-3715 | No Name Available | 03/01/1984 |
| 5305-00-823-5891 | No Name Available | 03/01/1977 |
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 |
|---|---|
| 003-007868-066 | Socket Head Cap Screw |
| 100A900053 | Socket Head Cap Screw |
| 22571N PIECE 30 | Socket Head Cap Screw |
| 827339 | Socket Head Cap Screw |
| ASC1541640 | Socket Head Cap Screw |
| S53124-008 | Socket Head Cap Screw |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
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Does NSN 5305-00-988-7840 require demilitarization?
Does NSN 5305-00-988-7840 contain precious materials?
Does NSN 5305-00-988-7840 contain hazardous materials?
When the NSN 5305-00-988-7840 was assigned to the Federal Catalog?
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