43-S-4374-1640
View detailed technical data, stock status, and sourcing information for: 43-S-4374-1640
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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.
0.500 inches nominal thread length, flat chamfer head style, 3a thread class, right-hand thread direction, 0.500 inches nominal 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
- 0.500 inches nominal
- Fastener Length
- 0.500 inches nominal
- Head Style
- flat chamfer
- Head Diameter
- 0.262 inches minimum and 0.270 inches maximum
- Head Height
- 0.159 inches minimum and 0.164 inches maximum
- Internal Drive Style
- hexagon
- Nominal Thread Diameter
- 0.164 inches
- Width Across Flats
- 0.140 inches minimum and 0.142 inches maximum
- Thread Quantity Per Inch
- 32
- Hardness Rating
- 36.0 rockwell c minimum and 43.0 rockwell c maximum overall
- Minimum Yield Strength
- 130000 pounds per square inch
- Material
- steel overall
- Material Document And Classification
- 66 fed std single material response overall
- Surface Treatment
- cadmium and chromate or zinc and chromate overall
- Thread Series Designator
- unc
- Nondefinitive Spec/Std Data
- 6 type
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 |
|---|---|
| 12Z1196-14 | Socket Head Cap Screw |
| 43-S-4374-1640 | Socket Head Cap Screw |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5305-00-273-5557?
Does the NSN 5305-00-273-5557 have a Schedule B code assigned?
Does NSN 5305-00-273-5557 require demilitarization?
Does NSN 5305-00-273-5557 contain precious materials?
Does NSN 5305-00-273-5557 contain hazardous materials?
When the NSN 5305-00-273-5557 was assigned to the Federal Catalog?
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