181670
View detailed technical data, stock status, and sourcing information for: 181670
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An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. Excludes:bolt,machine; bolt,externally relieved body; bolt,internal wrenching; and screw,cap,socket head.
2a thread class, hexagon head style, right-hand thread direction, 1.500 inches nominal fastener length, 1.125 inches minimum thread 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
- 2a
- Thread Direction
- right-hand
- Thread Length
- 1.125 inches minimum
- Fastener Length
- 1.500 inches nominal
- Head Style
- hexagon
- Head Height
- 0.272 inches minimum and 0.291 inches maximum
- Width Between Flats
- 0.612 inches minimum and 0.625 inches maximum
- Nominal Thread Diameter
- 0.438 inches
- Thread Quantity Per Inch
- 20
- Minimum Tensile Strength
- 120000 pounds per square inch
- Hardness Rating
- 25.0 rockwell c minimum and 30.0 rockwell c maximum overall
- Material
- steel overall
- Surface Treatment
- cadmium and chromate or zinc and chromate overall
- Thread Series Designator
- unf
- Nondefinitive Spec/Std Data
- 5 grade and 10p style and 2 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 |
|---|---|
| 181670 | Hexagon Head Cap Screw |
| 20471S7 | Hexagon Head Cap Screw |
| 20724G | Hexagon Head Cap Screw |
| 5305000181670 | Hexagon Head Cap Screw |
| 60X3259 | Hexagon Head Cap Screw |
| MS35298-89 | Hexagon Head Cap Screw |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5305-00-018-1670?
Does the NSN 5305-00-018-1670 have a Schedule B code assigned?
Does NSN 5305-00-018-1670 require demilitarization?
Does NSN 5305-00-018-1670 contain precious materials?
Does NSN 5305-00-018-1670 contain hazardous materials?
When the NSN 5305-00-018-1670 was assigned to the Federal Catalog?
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