6-40NF3X3-8LG
View detailed technical data, stock status, and sourcing information for: 6-40NF3X3-8LG
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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.
0.375 inches nominal fastener length, right-hand thread direction, 3a thread class, 0.341 inches minimum thread length, flat chamfer head style
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
- 0.341 inches minimum
- Fastener Length
- 0.375 inches nominal
- Head Style
- flat chamfer
- Head Diameter
- 0.218 inches minimum and 0.226 inches maximum
- Head Height
- 0.134 inches minimum and 0.138 inches maximum
- Hole Diameter
- 0.033 inches nominal
- Internal Drive Style
- hexagon
- Nominal Thread Diameter
- 0.138 inches
- Width Across Flats
- 0.109 inches minimum and 0.111 inches maximum
- Hole Quantity
- 2
- Hole Type
- drilled
- Thread Quantity Per Inch
- 40
- Minimum Tensile Strength
- 80000 pounds per square inch
- Hardness Rating
- 80.0 rockwell b minimum overall
- Minimum Yield Strength
- 30000 pounds per square inch
- Hole Configuration Style
- round internal hexagon
- 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
- unf
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 5305-00-225-5758 | No Name Available | 02/20/2017 |
| 5305-00-321-9550 | No Name Available | 07/01/1986 |
| 5305-00-781-6758 | No Name Available | 04/01/1986 |
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 |
|---|---|
| 2004T64P03 | Socket Head Cap Screw |
| 6-40NF3X3-8LG | Socket Head Cap Screw |
| 69582-6-3F | Socket Head Cap Screw |
| NAS1351C06H6 | Socket Head Cap Screw |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5305-00-051-7352?
Does the NSN 5305-00-051-7352 have a Schedule B code assigned?
Does NSN 5305-00-051-7352 require demilitarization?
Does NSN 5305-00-051-7352 contain precious materials?
Does NSN 5305-00-051-7352 contain hazardous materials?
When the NSN 5305-00-051-7352 was assigned to the Federal Catalog?
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