5305-00-071-1781
Find complete technical information, availability, and procurement data for: 5305-00-071-1781
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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.
right-hand thread direction, 2a thread class, hexagon head style, 5.406 inches minimum and 5.500 inches maximum fastener length, 1.250 inches minimum and 1.440 inches maximum 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
- 1.250 inches minimum and 1.440 inches maximum
- Fastener Length
- 5.406 inches minimum and 5.500 inches maximum
- Head Style
- hexagon
- Head Height
- 0.302 inches minimum and 0.323 inches maximum
- Width Between Flats
- 0.736 inches minimum and 0.750 inches maximum
- Nominal Thread Diameter
- 0.500 inches
- Thread Quantity Per Inch
- 13
- Minimum Tensile Strength
- 120000 pounds per square inch
- Hardness Rating
- 23.0 rockwell c minimum and 32.0 rockwell c maximum overall
- Minimum Yield Strength
- 85000 pounds per square inch
- Material
- steel overall
- Material Document And Classification
- sae gr 5 assn std single material response overall
- Surface Treatment
- cadmium and chromate overall
- Surface Treatment Document And Classification
- qq-p-416,ty 2 cl 2 fed spec single treatment response overall
- Thread Series Designator
- unc
- Nondefinitive Spec/Std Data
- 2 type and 10p style
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 5305-00-011-9471 | No Name Available | 12/01/1979 |
| 5306-00-281-3217 | No Name Available | 07/30/1974 |
| 5305-00-577-5543 | No Name Available | 02/24/1967 |
| 5305-00-753-4370 | No Name Available | 11/01/1979 |
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 |
|---|---|
| 5305000711781 | Hexagon Head Cap Screw |
| 5305PL1848697 | Hexagon Head Cap Screw |
| MS90725-128 | Hexagon Head Cap Screw |
FAQs
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Does NSN 5305-00-071-1781 require demilitarization?
Does NSN 5305-00-071-1781 contain precious materials?
Does NSN 5305-00-071-1781 contain hazardous materials?
When the NSN 5305-00-071-1781 was assigned to the Federal Catalog?
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