443-5940130 ITEM 20
View detailed technical data, stock status, and sourcing information for: 443-5940130 ITEM 20
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An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. The threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. For items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, bolt, shear. See also screw, cap, hexagon head and screw, machine.
2.438 inches minimum and 2.500 inches maximum thread length, right-hand thread direction, round head style, 2.500 inches nominal fastener length, 2a thread class
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
- 2.438 inches minimum and 2.500 inches maximum
- Fastener Length
- 2.500 inches nominal
- Head Style
- round
- Head Diameter
- 0.256 inches minimum and 0.270 inches maximum
- Head Height
- 0.087 inches minimum and 0.097 inches maximum
- Internal Drive Style
- slot
- Nominal Thread Diameter
- 0.138 inches
- Thread Quantity Per Inch
- 32
- Minimum Tensile Strength
- 80000 pounds per square inch
- Screw Material
- copper alloy 268 or copper alloy 260 or copper alloy 230 or copper alloy 377 or copper alloy 360 or copper alloy 353 or copper alloy 270 or copper alloy 274 or copper alloy 462 or copper alloy 464 or copper alloy 482 or copper alloy 485 or copper alloy 510 or copper alloy 745 or copper alloy 752 or copper alloy 757 or copper alloy 764 or copper alloy 770 or copper alloy 240 or copper alloy 342
- Screw Material Document And Classification
- qq-b-613 fed spec 1st material response or qq-b-626 fed spec 2nd material response or qq-w-321 fed spec 3rd material response
- Screw Surface Treatment
- oxide
- Screw Surface Treatment Document And Classification
- mil-f-495 mil spec single treatment response
- Color
- black
- Thread Series Designator
- unc
- Nondefinitive Spec/Std Data
- 1 type and 1s style
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 |
|---|---|
| 4047-1056 ITEM 20 | Machine Screw |
| 443-5940130 ITE | Machine Screw |
| 443-5940130 ITEM 20 | Machine Screw |
| 6504208 | Machine Screw |
FAQs
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What is the FSCG of the NSN 5305-01-247-7604?
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Does NSN 5305-01-247-7604 require demilitarization?
Does NSN 5305-01-247-7604 contain precious materials?
Does NSN 5305-01-247-7604 contain hazardous materials?
When the NSN 5305-01-247-7604 was assigned to the Federal Catalog?
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