343-0331-00
View detailed technical data, stock status, and sourcing information for: 343-0331-00
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An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes:bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.
right-hand thread direction, 0.407 inches minimum and 0.438 inches maximum fastener length, 0.345 inches minimum and 0.438 inches maximum thread length, 2a thread class, pan 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
- 2a
- Thread Direction
- right-hand
- Thread Length
- 0.345 inches minimum and 0.438 inches maximum
- Fastener Length
- 0.407 inches minimum and 0.438 inches maximum
- Head Style
- pan
- 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
- cross recess type 1
- Nominal Thread Diameter
- 0.138 inches
- Thread Quantity Per Inch
- 32
- Screw Material
- copper alloy
- Screw Surface Treatment
- nickel
- Screw Surface Treatment Document And Classification
- qq-n-290,cl 1 grade g fed spec single treatment response
- Thread Series Designator
- unc
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 |
|---|---|
| 343-0331-00 | Machine Screw |
| 343-0331-000 | Machine Screw |
| P343-0331-000 | Machine Screw |
FAQs
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What is the FSCG of the NSN 5305-00-009-1442?
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Does NSN 5305-00-009-1442 require demilitarization?
Does NSN 5305-00-009-1442 contain precious materials?
Does NSN 5305-00-009-1442 contain hazardous materials?
When the NSN 5305-00-009-1442 was assigned to the Federal Catalog?
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